diff --git a/core/blockly.js b/core/blockly.js
index 5f2a71908..a7067caa5 100644
--- a/core/blockly.js
+++ b/core/blockly.js
@@ -708,7 +708,7 @@ Blockly.setTheme = function(theme) {
     ws.toolbox_.updateColourFromTheme();
   }
 
-  var event = new Blockly.Events.Ui(null, 'themeChanged');
+  var event = new Blockly.Events.Ui(null, 'theme');
   event.workspaceId = ws.id;
   Blockly.Events.fire(event);
 };
diff --git a/tests/jsunit/theme_test.js b/tests/jsunit/theme_test.js
index 782b8be90..80a78ca9c 100644
--- a/tests/jsunit/theme_test.js
+++ b/tests/jsunit/theme_test.js
@@ -142,7 +142,7 @@ function test_setTheme() {
   //check that the toolbox refreshed method was called
   assertEquals(workspace.refreshToolboxSelection(), 3);
 
-  assertEquals(Blockly.Events.FIRE_QUEUE_.pop().element, 'themeChanged');
+  assertEquals(Blockly.Events.FIRE_QUEUE_.pop().element, 'theme');
 
   undefineThemeTestBlocks();
 }