diff --git a/tools/tests/x86_emulator/Makefile b/tools/tests/x86_emulator/Makefile
index 834b2112e7..b310c909a3 100644
--- a/tools/tests/x86_emulator/Makefile
+++ b/tools/tests/x86_emulator/Makefile
@@ -264,7 +264,8 @@ $(TARGET): $(OBJS)
 .PHONY: clean
 clean:
 	rm -rf $(TARGET) *.o *~ core *.bin x86_emulate
-	rm -rf $(TARGET) $(addsuffix .h,$(TESTCASES)) $(addsuffix -opmask.h,$(OPMASK))
+	rm -rf $(addsuffix .h,$(TESTCASES)) $(addsuffix -opmask.h,$(OPMASK))
+	rm -rf $(addsuffix .c,$(filter-out blowfish,$(TESTCASES)))
 
 .PHONY: distclean
 distclean: clean