diff --git a/toolkit/devtools/server/main.js b/toolkit/devtools/server/main.js
index 89260e53419a..3ed9203fc4f8 100644
--- a/toolkit/devtools/server/main.js
+++ b/toolkit/devtools/server/main.js
@@ -224,6 +224,19 @@ var DebuggerServer = {
     dumpn("Debugger server is shut down.");
   },
 
+  /**
+   * Raises an exception if the server has not been properly initialized.
+   */
+  _checkInit: function DS_checkInit() {
+    if (!this._transportInitialized) {
+      throw "DebuggerServer has not been initialized.";
+    }
+
+    if (!this.createRootActor) {
+      throw "Use DebuggerServer.addActors() to add a root actor implementation.";
+    }
+  },
+
   /**
    * Load a subscript into the debugging global.
    *
@@ -929,19 +942,6 @@ var DebuggerServer = {
     return deferred.promise;
   },
 
-  /**
-   * Raises an exception if the server has not been properly initialized.
-   */
-  _checkInit: function DS_checkInit() {
-    if (!this._transportInitialized) {
-      throw "DebuggerServer has not been initialized.";
-    }
-
-    if (!this.createRootActor) {
-      throw "Use DebuggerServer.addActors() to add a root actor implementation.";
-    }
-  },
-
   /**
    * Create a new debugger connection for the given transport. Called after
    * connectPipe(), from connectToParent, or from an incoming socket