diff --git a/src/ec_assoc_list.erl b/src/ec_assoc_list.erl
index 80919aa..e9bd0cc 100644
--- a/src/ec_assoc_list.erl
+++ b/src/ec_assoc_list.erl
@@ -47,12 +47,12 @@ has_key(Key, {ec_assoc_list, Data}) ->
     lists:keymember(Key, 1, Data).
 
 -spec get(ec_dictionary:key(K), Object::dictionary(K, V)) ->
-    ec_dictionary:value(V).
+                 ec_dictionary:value(V).
 get(Key, {ec_assoc_list, Data}) ->
     case lists:keyfind(Key, 1, Data) of
         {Key, Value} ->
             Value;
-         false ->
+        false ->
             throw(not_found)
     end.
 
@@ -64,19 +64,19 @@ get(Key, Default, {ec_assoc_list, Data}) ->
     case lists:keyfind(Key, 1, Data) of
         {Key, Value} ->
             Value;
-         false ->
+        false ->
             Default
     end.
 
 -spec add(ec_dictionary:key(K), ec_dictionary:value(V),
           Object::dictionary(K, V)) ->
-    dictionary(K, V).
+                 dictionary(K, V).
 add(Key, Value, {ec_assoc_list, _Data}=Dict) ->
     {ec_assoc_list, Rest} = remove(Key,Dict),
     {ec_assoc_list, [{Key, Value} | Rest ]}.
 
 -spec remove(ec_dictionary:key(K), Object::dictionary(K, _V)) ->
-    dictionary(K, _V).
+                    dictionary(K, _V).
 remove(Key, {ec_assoc_list, Data}) ->
     {ec_assoc_list, lists:keydelete(Key, 1, Data)}.
 
@@ -91,15 +91,15 @@ size({ec_assoc_list, Data}) ->
 -spec to_list(dictionary(K, V)) -> [{ec_dictionary:key(K),
                                      ec_dictionary:value(V)}].
 to_list({ec_assoc_list, Data}) ->
-   Data.
+    Data.
 
 -spec from_list([{ec_dictionary:key(K), ec_dictionary:value(V)}]) ->
-    dictionary(K, V).
+                       dictionary(K, V).
 from_list(List) when is_list(List) ->
     {ec_assoc_list, List}.
 
 -spec keys(dictionary(K, _V)) -> [ec_dictionary:key(K)].
 keys({ec_assoc_list, Data}) ->
     lists:map(fun({Key, _Value}) ->
-                     Key
-             end, Data).
+                      Key
+              end, Data).
diff --git a/src/ec_orddict.erl b/src/ec_orddict.erl
index 1244d60..fdd8a38 100644
--- a/src/ec_orddict.erl
+++ b/src/ec_orddict.erl
@@ -48,59 +48,59 @@ has_key(Key, Data) ->
     orddict:is_key(Key, Data).
 
 -spec get(ec_dictionary:key(K), Object::dictionary(K, V)) ->
-    ec_dictionary:value(V).
+                 ec_dictionary:value(V).
 get(Key, Data) ->
     case orddict:find(Key, Data) of
         {ok, Value} ->
             Value;
-         error ->
+        error ->
             throw(not_found)
     end.
 
 -spec get(ec_dictionary:key(K),
           Default::ec_dictionary:value(V),
           Object::dictionary(K, V)) ->
-    ec_dictionary:value(V).
+                 ec_dictionary:value(V).
 get(Key, Default, Data) ->
     case orddict:find(Key, Data) of
         {ok, Value} ->
             Value;
-         error ->
+        error ->
             Default
     end.
 
 -spec add(ec_dictionary:key(K), ec_dictionary:value(V),
           Object::dictionary(K, V)) ->
-    dictionary(K, V).
+                 dictionary(K, V).
 add(Key, Value, Data) ->
     orddict:store(Key, Value, Data).
 
 -spec remove(ec_dictionary:key(K), Object::dictionary(K, V)) ->
-    dictionary(K, V).
+                    dictionary(K, V).
 remove(Key, Data) ->
     orddict:erase(Key, Data).
 
 -spec has_value(ec_dictionary:value(V), Object::dictionary(_K, V)) -> boolean().
 has_value(Value, Data) ->
     orddict:fold(fun(_, NValue, _) when NValue == Value ->
-                      true;
-                 (_, _, Acc) ->
-                      Acc
-              end,
-              false,
-              Data).
+                         true;
+                    (_, _, Acc) ->
+                         Acc
+                 end,
+                 false,
+                 Data).
 
 -spec size(Object::dictionary(_K, _V)) -> non_neg_integer().
 size(Data) ->
     orddict:size(Data).
 
 -spec to_list(dictionary(K, V)) ->
-    [{ec_dictionary:key(K), ec_dictionary:value(V)}].
+                     [{ec_dictionary:key(K), ec_dictionary:value(V)}].
 to_list(Data) ->
     orddict:to_list(Data).
 
 -spec from_list([{ec_dictionary:key(K), ec_dictionary:value(V)}]) ->
-    dictionary(K, V).
+                       dictionary(K, V).
 from_list(List) when is_list(List) ->
     orddict:from_list(List).
 
diff --git a/src/ec_rbdict.erl b/src/ec_rbdict.erl
index 1bfcecc..f28f625 100644
--- a/src/ec_rbdict.erl
+++ b/src/ec_rbdict.erl
@@ -139,12 +139,12 @@ size(T) ->
     size1(T).
 
 -spec to_list(dictionary(K, V)) ->
-    [{ec_dictionary:key(K), ec_dictionary:value(V)}].
+                     [{ec_dictionary:key(K), ec_dictionary:value(V)}].
 to_list(T) ->
     to_list(T, []).
 
 -spec from_list([{ec_dictionary:key(K), ec_dictionary:value(V)}]) ->
-    dictionary(K, V).
+                       dictionary(K, V).
 from_list(L) ->
     lists:foldl(fun ({K, V}, D) ->
                         add(K, V, D)
@@ -159,7 +159,7 @@ keys(Dict) ->
 %%% Enternal functions
 %%%===================================================================
 -spec keys(dictionary(K, _V), [ec_dictionary:key(K)]) ->
-    [ec_dictionary:key(K)].
+                  [ec_dictionary:key(K)].
 keys(empty, Tail) ->
     Tail;
 keys({_, L, K, _, R}, Tail) ->
@@ -167,7 +167,7 @@ keys({_, L, K, _, R}, Tail) ->
 
 
 -spec erase_aux(ec_dictionary:key(K), dictionary(K, V)) ->
-    {dictionary(K, V), boolean()}.
+                       {dictionary(K, V), boolean()}.
 erase_aux(_, empty) ->
     {empty, false};
 erase_aux(K, {b, A, Xk, Xv, B}) ->
@@ -228,7 +228,7 @@ erase_aux(K, {r, A, Xk, Xv, B}) ->
     end.
 
 -spec erase_min(dictionary(K, V)) ->
-    {dictionary(K, V), {ec_dictionary:key(K), ec_dictionary:value(V)}, boolean()}.
+                       {dictionary(K, V), {ec_dictionary:key(K), ec_dictionary:value(V)}, boolean()}.
 erase_min({b, empty, Xk, Xv, empty}) ->
     {empty, {Xk, Xv}, true};
 erase_min({b, empty, Xk, Xv, {r, A, Yk, Yv, B}}) ->
@@ -240,15 +240,15 @@ erase_min({r, empty, Xk, Xv, A}) ->
 erase_min({b, A, Xk, Xv, B}) ->
     {A1, Min, Dec} = erase_min(A),
     if Dec ->
-           {T, Dec1} = unbalright(b, A1, Xk, Xv, B),
-           {T, Min, Dec1};
+            {T, Dec1} = unbalright(b, A1, Xk, Xv, B),
+            {T, Min, Dec1};
        true -> {{b, A1, Xk, Xv, B}, Min, false}
     end;
 erase_min({r, A, Xk, Xv, B}) ->
     {A1, Min, Dec} = erase_min(A),
     if Dec ->
-           {T, Dec1} = unbalright(r, A1, Xk, Xv, B),
-           {T, Min, Dec1};
+            {T, Dec1} = unbalright(r, A1, Xk, Xv, B),
+            {T, Min, Dec1};
        true -> {{r, A1, Xk, Xv, B}, Min, false}
     end.
 
@@ -299,7 +299,7 @@ to_list({_, A, Xk, Xv, B}, List) ->
 -spec lbalance(color(), dictionary(K, V),
                ec_dictionary:key(K), ec_dictionary:value(V),
                dictionary(K, V)) ->
-   dictionary(K, V).
+                      dictionary(K, V).
 lbalance(b, {r, {r, A, Xk, Xv, B}, Yk, Yv, C}, Zk, Zv,
          D) ->
     {r, {b, A, Xk, Xv, B}, Yk, Yv, {b, C, Zk, Zv, D}};
@@ -311,7 +311,7 @@ lbalance(C, A, Xk, Xv, B) -> {C, A, Xk, Xv, B}.
 -spec rbalance(color(), dictionary(K, V),
                ec_dictionary:key(K), ec_dictionary:value(V),
                dictionary(K, V)) ->
-    dictionary(K, V).
+                      dictionary(K, V).
 rbalance(b, A, Xk, Xv,
          {r, {r, B, Yk, Yv, C}, Zk, Zv, D}) ->
     {r, {b, A, Xk, Xv, B}, Yk, Yv, {b, C, Zk, Zv, D}};