diff --git a/apps/plugins/Makefile b/apps/plugins/Makefile
index 2ed1a101bb..8464e93586 100644
--- a/apps/plugins/Makefile
+++ b/apps/plugins/Makefile
@@ -52,11 +52,11 @@ endif
 .PHONY: $(SUBDIRS)
 all: $(BUILDDIR)/libplugin.a $(ROCKS) $(SUBDIRS) $(DEPFILE)
 
-$(OBJDIR)/credits.raw: $(DOCSDIR)/CREDITS
+$(BUILDDIR)/credits.raw: $(DOCSDIR)/CREDITS
 	@echo "create credits.raw"
 	@perl credits.pl < $< > $@
 
-$(OBJDIR)/credits.o: credits.c $(OBJDIR)/credits.raw
+$(OBJDIR)/credits.o: credits.c $(BUILDDIR)/credits.raw
 	@mkdir -p `dirname $@`
 	@echo "CC $<"
 	@$(CC) $(CFLAGS) -I$(OBJDIR) -c $< -o $@
diff --git a/tools/make.inc b/tools/make.inc
index b5eae4430e..5a2ed800a6 100644
--- a/tools/make.inc
+++ b/tools/make.inc
@@ -29,13 +29,22 @@ $(DEPFILE): $(SOURCES)
 	$(SILENT)mkdir -p `dirname $(DEPFILE)`
 	$(SILENT)rm -f $(DEPFILE)
 	$(SILENT)(if test ! -f $(BUILDDIR)/lang.h; then \
+	  del="$(BUILDDIR)/lang.h"; \
 	  touch $(BUILDDIR)/lang.h; \
 	fi; \
 	for each in $(SOURCES) x; do \
+	  if test "$$each" = "credits.c"; then \
+	    del="$$del$(BUILDDIR)/credits.raw"; \
+	    touch $(BUILDDIR)/credits.raw; \
+	  fi; \
           if test "x" != "$$each"; then \
 	    obj=`echo $$each | sed -e 's/\.[cS]/.o/'`; \
 	    $(CC) -MM -MT "$(OBJDIR)/$$obj" $(CFLAGS) $$each >> $(DEPFILE) 2>/dev/null; \
           fi; \
+	  if test -n "$$del"; then \
+	    rm $$del; \
+            del=""; \
+	  fi \
 	done; \
 	echo "oo" >/dev/null )