diff --git a/gio/completion/gsettings b/gio/completion/gsettings
index d509758e9..ef1757636 100644
--- a/gio/completion/gsettings
+++ b/gio/completion/gsettings
@@ -5,7 +5,7 @@
 ####################################################################################################
 
 __gsettings() {
-  local choices coffset schemadir
+  local choices coffset schemadir=""
 
   if [ ${COMP_CWORD} -gt 2 ]; then
       if [ ${COMP_WORDS[1]} = --schemadir ]; then