diff --git a/data/plumbing b/data/plumbing
index 6115d4a..6e28923 100644
--- a/data/plumbing
+++ b/data/plumbing
@@ -6,5 +6,5 @@
 # ollie:// URLs go to the ollie port
 # Format: ollie://session/agent#block
 type is text
-data matches 'ollie://[a-zA-Z0-9_\-./]+(/[a-zA-Z0-9_\-./]+)?(#[0-9]+)?'
+data matches 'ollie://[a-zA-Z0-9_\-.:]+(/[a-zA-Z0-9_\-.:]+)?(#[0-9]+)?'
 plumb to ollie