diff --git a/Makefile b/Makefile
index 4317c5f..11d0727 100644
--- a/Makefile
+++ b/Makefile
@@ -60,7 +60,7 @@
 
 TOOLS_H := ${TARGET_OUT}/tools.h
 $(TOOLS_H):
-	echo "/* file generated automatically */" > $@ ; for t in $(PRIVATE_TOOLS) ; do echo "TOOL($$t)" >> $@ ; done
+	echo "/* file generated automatically */" > $@ ; for t in $(TOOLS) ; do echo "TOOL($$t)" >> $@ ; done
 
 $(TARGET_OUT)/%.o: %.c
 	$(CC) $(DEFINES) -I${TARGET_OUT} -c -o $@ $<