diff --git a/build_tools/make_version b/build_tools/make_version
index ace5221599..2a4021c8bd 100755
--- a/build_tools/make_version
+++ b/build_tools/make_version
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 if [ -f ${1}/.version ]; then
-	cat ${1}.version
+	cat ${1}/.version
 elif [ -f ${1}/.svnrevision ]; then
 	echo SVN-`cat ${1}/.svnbranch`-r`cat ${1}/.svnrevision`
 elif [ -d .svn ]; then