diff --git a/erlang.mk b/erlang.mk
index 8a4051a6..6546f90c 100644
--- a/erlang.mk
+++ b/erlang.mk
@@ -5386,9 +5386,11 @@ endef
 $(foreach otp,$(CI_OTP),$(eval $(call ci_target,$(otp))))
 
 define ci_otp_target
+ifeq ($(wildcard $(CI_INSTALL_DIR)/$(1)),)
 $(CI_INSTALL_DIR)/$(1): $(KERL)
 	$(KERL) build git $(OTP_GIT) $(1) $(1)
 	$(KERL) install $(1) $(CI_INSTALL_DIR)/$(1)
+endif
 endef
 
 $(foreach otp,$(CI_OTP),$(eval $(call ci_otp_target,$(otp))))