diff --git a/board/prodrive/p3p440/Makefile b/board/prodrive/p3p440/Makefile
index 261e5d4..b93f2c3 100644
--- a/board/prodrive/p3p440/Makefile
+++ b/board/prodrive/p3p440/Makefile
@@ -39,7 +39,7 @@
 	rm -f $(SOBJS) $(OBJS)
 
 distclean:	clean
-	rm -f $(LIB) core *.bak .depend
+	rm -f $(LIB) core *.bak $(obj).depend
 
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