diff --git a/apache-maven/src/bin/mvn b/apache-maven/src/bin/mvn
index 7e1f0abbd87b..38b036af1d48 100755
--- a/apache-maven/src/bin/mvn
+++ b/apache-maven/src/bin/mvn
@@ -133,7 +133,7 @@ find_maven_basedir() {
       basedir=$wdir
       break
     fi
-    if [ "$wdir" == '/' ] ; then
+    if [ "$wdir" = '/' ] ; then
       break
     fi
     wdir=`cd "$wdir/.."; pwd`