1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index fc7595cdf8..58c71b1dfc 100755
--- a/configure
+++ b/configure
@@ -690,7 +690,7 @@ ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 subdirs="$add_ons"
 
 add_ons_pfx=
-if test x$add_ons != x; then
+if test x"$add_ons" != x; then
   for f in $add_ons; do
     add_ons_pfx="$add_ons_pfx $f/"
   done