diff --git a/js/client-chat.js b/js/client-chat.js
index 9bba38541..eb4822423 100644
--- a/js/client-chat.js
+++ b/js/client-chat.js
@@ -169,7 +169,7 @@
 
 				// There needs to be non-whitespace to the left of the cursor.
 				var m = /^(.*?)([^ ]*)$/.exec(text.substr(0, idx));
-				if (!m) return false;
+				if (!m) return true;
 
 				this.tabComplete.prefix = m[1];
 				var idprefix = toId(m[2]);