diff --git a/infer/tests/build_systems/buck/Makefile b/infer/tests/build_systems/buck/Makefile
index 77dc4fb8c..090339b31 100644
--- a/infer/tests/build_systems/buck/Makefile
+++ b/infer/tests/build_systems/buck/Makefile
@@ -14,7 +14,7 @@ ANALYZER = infer
 SOURCES = $(wildcard $(TESTS_DIR)/codetoanalyze/java/infer/*.java)
 OBJECTS = $(ROOT_DIR)/buck-out/gen/infer/tests/codetoanalyze/java/infer/lib__compile__output/compile.jar
 INFERPRINT_OPTIONS = --project-root $(ROOT_DIR) --issues-tests
-CLEAN_EXTRAS = $(ROOT_DIR)/buck-out/ $(CURDIR)/buck-out/
+CLEAN_EXTRA = $(ROOT_DIR)/buck-out/ $(CURDIR)/buck-out/
 
 include $(TESTS_DIR)/java.make
 include $(TESTS_DIR)/base.make
diff --git a/infer/tests/clang.make b/infer/tests/clang.make
index 226e8b60f..af2a37727 100644
--- a/infer/tests/clang.make
+++ b/infer/tests/clang.make
@@ -8,6 +8,7 @@
 ROOT_DIR = $(TESTS_DIR)/../..
 
 OBJECTS = $(foreach source,$(SOURCES),$(basename $(source)).o)
+CLEAN_EXTRA += duplicates.txt
 
 include $(TESTS_DIR)/base.make
 
@@ -27,6 +28,3 @@ infer-out/report.json: $(CLANG_DEPS) $(SOURCES)
 
 %.o: %.mm
 	clang++ $(CLANG_OPTIONS) -o $@ $<
-
-clean:
-	$(REMOVE) duplicates.txt
diff --git a/infer/tests/codetoanalyze/objc/errors/Makefile b/infer/tests/codetoanalyze/objc/errors/Makefile
index 4313546be..ec81b8dd5 100644
--- a/infer/tests/codetoanalyze/objc/errors/Makefile
+++ b/infer/tests/codetoanalyze/objc/errors/Makefile
@@ -16,7 +16,8 @@ CLANG_OPTIONS = -x objective-c \
   -isysroot $(XCODEROOT)$(IPHONESIMULATOR_ISYSROOT_SUFFIX) \
   -mios-simulator-version-min=8.2 --target=x86_64-apple-darwin14 -c \
 
-CLEAN_EXTRA = infer-out-arc infer-out-all
+CLEAN_EXTRA = infer-out-arc infer-out-all infer-out-all infer-out-arc \
+              issues.exp.test.all issues.exp.test.arc issues.exp.test.default
 INFER_OPTIONS = --cxx  --check-duplicate-symbols --no-filtering --debug-exceptions
 INFERPRINT_OPTIONS = --issues-tests
 
@@ -134,7 +135,3 @@ issues.exp.test: infer-out-all/report.json infer-out-arc/report.json infer-out/r
 	$(INFERPRINT_BIN) -q -a $(ANALYZER) $(INFERPRINT_OPTIONS) $@.default \
 	  --from-json-report infer-out/report.json
 	cat $@.all $@.arc $@.default > $@
-
-clean:
-	$(REMOVE_DIR) infer-out-all infer-out-arc
-	$(REMOVE) issues.exp.test.all issues.exp.test.arc issues.exp.test.default