diff --git a/src/tool/Makefile b/src/tool/Makefile
index 12f62e3735..c3de27b68d 100644
--- a/src/tool/Makefile
+++ b/src/tool/Makefile
@@ -1,4 +1,4 @@
-all: adduser convert
+all: adduser convert mapcache
 
 adduser:
 	$(CC) -o ../../tools/$@ adduser.c
@@ -6,5 +6,9 @@ adduser:
 convert:
 	$(CC) -o ../../tools/$@ convert.c
 
+mapcache:
+	$(MAKE) -C ../zlib
+	$(CC) -o ../../$@ mapcache.c ../zlib/unz.o
+
 clean:
-	rm -rf ../../tools/adduser ../../tools/convert
+	rm -rf ../../tools/adduser ../../tools/convert ../../mapcache