diff --git a/create_tarball b/create_tarball
index e2019f5..694aad3 100755
--- a/create_tarball
+++ b/create_tarball
@@ -85,7 +85,9 @@ fi
 MODULE=${SUBROOT#$TDEROOT/main/}
 
 # Calculate version
-tag=`git tag | sort -t. -k 1,1nr -k 2,2nr -k 3,3nr -k 4,4nr | while read t; do \
+tag=`git tag | \
+     sed "s|^\([^0-9]\)|\1.|" | sort -t. -k 1,1nr -k 2,2nr -k 3,3nr -k 4,4nr -k 5,5nr | sed "s|^\([^0-9]\)\.|\1|" | \
+     while read t; do \
      git branch --contains $t | cut -c 3- | grep -x "$branch" >/dev/null && \
      echo "$t..HEAD" && break; done`