diff --git a/auto/options b/auto/options
index 3b3ee0fae..aca314b93 100644
--- a/auto/options
+++ b/auto/options
@@ -135,7 +135,7 @@ opt=
 
 for option
 do
-     opt="$opt `echo $option | sed -e \"s/\(--[^=]*=\)\(.* .*\)/\1'\2'/\"`"
+    opt="$opt `echo $option | sed -e \"s/\(--[^=]*=\)\(.* .*\)/\1'\2'/\"`"
 
     case "$option" in
         -*=*) value=`echo "$option" | sed -e 's/[-_a-zA-Z0-9]*=//'` ;;