diff --git a/static-files/clog-ace/src/ext-language_tools.js b/static-files/clog-ace/src/ext-language_tools.js
index 1fe4d6c..0c84cf2 100644
--- a/static-files/clog-ace/src/ext-language_tools.js
+++ b/static-files/clog-ace/src/ext-language_tools.js
@@ -1279,7 +1279,7 @@ exports.parForEach = function (array, fn, callback) {
         });
     }
 };
-var ID_REGEX = /[a-zA-Z_0-9\$\-\u00A2-\u2000\u2070-\uFFFF]/;
+var ID_REGEX = /[a-zA-Z_0-9\:\$\-\u00A2-\u2000\u2070-\uFFFF]/;
 exports.retrievePrecedingIdentifier = function (text, pos, regex) {
     regex = regex || ID_REGEX;
     var buf = [];
@@ -2015,4 +2015,3 @@ require("../config").defineOptions(Editor.prototype, "editor", {
                         }
                     });
                 })();
-            
\ No newline at end of file
diff --git a/tools/clog-builder.lisp b/tools/clog-builder.lisp
index 52e1138..e522bd8 100644
--- a/tools/clog-builder.lisp
+++ b/tools/clog-builder.lisp
@@ -1314,6 +1314,7 @@ of controls and double click to select control."
           (clog-ace:set-on-auto-complete (event-editor app)
                                          (lambda (obj prefix)
                                            (declare (ignore obj))
+                                           (print prefix)
                                            (when (current-editor-is-lisp app)
                                              ;; we need to modify Ace's lisp mode to treat : as part of symbol
                                              ;; otherwise lookups do not consider the symbols package. I did