diff --git a/qcd_function b/qcd_function
index 6f05eac..20a43a7 100644
--- a/qcd_function
+++ b/qcd_function
@@ -172,9 +172,12 @@ function gcd() {
     local dname
     local bname
     local match
+    local join
     set -o pipefail
-    dname=$( dirname "$1" )
-    bname=$( basename "$1" )
+    join="$@"
+    join=${join// /.}
+    dname=$( dirname "$join" )
+    bname=$( basename "$join" )
     match=$( ls -d "$dname"/*/ | grep "$bname" | head -n 1 )
     [[ ! "$match" = "" ]] && {
         echo $match | grep --color=always  "$bname"