diff --git a/makefile b/makefile
index 367311518f..7356792831 100644
--- a/makefile
+++ b/makefile
@@ -898,7 +898,7 @@ $(generator): $(generator-objects)
 	@echo "linking $(@)"
 	$(build-ld) $(^) $(build-lflags) -o $(@)
 
-$(openjdk-objects): $(build)/openjdk/%.o: $(openjdk-src)/%.c \
+$(openjdk-objects): $(build)/openjdk/%-openjdk.o: $(openjdk-src)/%.c \
 		$(openjdk-headers-dep)
 	@echo "compiling $(@)"
 	@mkdir -p $(dir $(@))
@@ -907,7 +907,7 @@ $(openjdk-objects): $(build)/openjdk/%.o: $(openjdk-src)/%.c \
 		$(optimization-cflags) -w -c $(build)/openjdk/$(notdir $(<)) \
 		$(call output,$(@))
 
-$(openjdk-local-objects): $(build)/openjdk/%.o: $(src)/openjdk/%.c \
+$(openjdk-local-objects): $(build)/openjdk/%-openjdk.o: $(src)/openjdk/%.c \
 		$(openjdk-headers-dep)
 	@echo "compiling $(@)"
 	@mkdir -p $(dir $(@))
diff --git a/openjdk-src.mk b/openjdk-src.mk
index 190c8622e9..b050f75c94 100644
--- a/openjdk-src.mk
+++ b/openjdk-src.mk
@@ -298,7 +298,7 @@ endif
 openjdk-local-sources = \
 	$(src)/openjdk/my_net_util.c
 
-c-objects = $(foreach x,$(1),$(patsubst $(2)/%.c,$(3)/%.o,$(x)))
+c-objects = $(foreach x,$(1),$(patsubst $(2)/%.c,$(3)/%-openjdk.o,$(x)))
 
 openjdk-objects = \
 	$(call c-objects,$(openjdk-sources),$(openjdk-src),$(build)/openjdk)