diff --git a/compileAndGo b/compileAndGo
index d11cb4d..4a3316d 100755
--- a/compileAndGo
+++ b/compileAndGo
@@ -411,7 +411,7 @@ javac* | jikes*)
     fi
     [[ ! -z "${execute:="${compilerDir}java -cp $cacheDir${classPath:+:$classPath} $mainClass"}" ]]
     # Prepare to tell javac to compile for the latest language version it supports
-    sourceVersion="-source $(${compilerDir}java -version 2>&1 | sed -n '1s,[^"]*"\([1-9][1-9]*\.[1-9][1-9]*\).*,\1,p')"
+    sourceVersion="-source $(${compilerDir}java -version 2>&1 | sed -n '1{s/.*"\(.*\)".*/\1/; s/^1\.//; s/\..*//; p}')"
     ;;
   jikes*)
     if [[ -z "$classPath" && -z "$compilerArgs" && -z "$CLASSPATH" ]] ; then