diff --git a/bin/duneproject b/bin/duneproject
index 698509b8d8ae899c1ff7f9e9c15947eade2ac6a0..a38fff98e3836affe61c25721fcad12829fc5348 100755
--- a/bin/duneproject
+++ b/bin/duneproject
@@ -219,7 +219,7 @@ while [ "$DATACORRECT" != "y" -a "$DATACORRECT" != "Y" ]; do
   while [ -z $VERSION ]; do
     read -p "3) Project/Module version? " VERSION
   done
-  while [ -z $MAINTAINER ]; do
+  while [ -z "$MAINTAINER" ]; do
     read -p "4) Maintainers email address? " MAINTAINER
   done