diff --git a/Makefile b/Makefile
index 11d0727..caae6e0 100644
--- a/Makefile
+++ b/Makefile
@@ -66,12 +66,15 @@
 	$(CC) $(DEFINES) -I${TARGET_OUT} -c -o $@ $<
 
 OBJFILES := $(patsubst %.c,$(TARGET_OUT)/%.o,$(LOCAL_SRC_FILES))
-DEFINES := -DNO_ANDROID_HEADERS
+DEFINES := -g -DNO_ANDROID_HEADERS
 LIBRARIES := -lpthread
 
 toolbox: $(TOOLS_H) $(OBJFILES)
 	$(CC) -o $(TARGET_OUT)/$(LOCAL_MODULE) $(DEFINES) $(OBJFILES) $(LIBRARIES)
 
+clean:
+	rm $(TARGET_OUT)/*.o $(TARGET_OUT)/$(LOCAL_MODULE) $(TOOLS_H)
+
 # Make #!/system/bin/toolbox launchers for each tool.
 #
 SYMLINKS := $(addprefix $(TARGET_OUT)/bin/,$(TOOLS))