diff --git a/makedocs.sh b/makedocs.sh
index 86df989..5316252 100755
--- a/makedocs.sh
+++ b/makedocs.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Get the latest tag annotation out of git.
-VERS=`git tag -n1 | tail -n1 | perl -e '$tag = <STDIN>; $tag =~ s/^.*?\s\s+(.*)$/$1/; print $tag;'`
+VERS=`git tag -n1 | sort -V | tail -n1 | perl -e '$tag = <STDIN>; $tag =~ s/^.*?\s\s+(.*)$/$1/; print $tag;'`
 
 # Generate the documentation with the project number updated with the tag.
 (cat supportfiles/Doxyfile; echo "PROJECT_NUMBER = \"$VERS\"") | doxygen -