now the clean target deletes all binaries from all targets
diff --git a/tests/Makefile b/tests/Makefile
index 63538df..4eb33a6 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -35,7 +35,7 @@
 all: $(BINARY)
 
 clean:
-	rm -rf $(OBJS) $(BINARY) $(SOURCES:.c=.exe) lib$(LIBNAME).*
+	rm -rf $(OBJS) $(SOURCES:.c=) $(SOURCES:.c=.exe) lib$(LIBNAME).*
 
 $(BINARY): $(OBJS)