diff --git a/src/cdm b/src/cdm
index d5aead5..59094cc 100755
--- a/src/cdm
+++ b/src/cdm
@@ -128,6 +128,8 @@ else
 		elif [[ $dpyinfo = No\ protocol\ specified* ]]; then
 			# Display is in use by another user
 			let display=display+1
+		elif [[ $dpyinfo = Invalid\ MIT* ]];then
+			let display=display+1
 		else
 			break
 		fi