diff --git a/generators/dart.js b/generators/dart.js
index 295d9002a..83ef76cd6 100644
--- a/generators/dart.js
+++ b/generators/dart.js
@@ -106,7 +106,7 @@ Blockly.Dart.init = function(workspace) {
   var variables = workspace.getAllVariables();
   if (variables.length) {
     for (var i = 0; i < variables.length; i++) {
-      defvars[i] = Blockly.Dart.variableDB_.getName(variables[i],
+      defvars[i] = Blockly.Dart.variableDB_.getName(variables[i].name,
           Blockly.Variables.NAME_TYPE);
     }
     Blockly.Dart.definitions_['variables'] =
diff --git a/generators/javascript.js b/generators/javascript.js
index b641d2dce..00b96bcc1 100644
--- a/generators/javascript.js
+++ b/generators/javascript.js
@@ -156,7 +156,7 @@ Blockly.JavaScript.init = function(workspace) {
   var variables = workspace.getAllVariables();
   if (variables.length) {
     for (var i = 0; i < variables.length; i++) {
-      defvars[i] = Blockly.JavaScript.variableDB_.getName(variables[i],
+      defvars[i] = Blockly.JavaScript.variableDB_.getName(variables[i].name,
           Blockly.Variables.NAME_TYPE);
     }
     Blockly.JavaScript.definitions_['variables'] =
diff --git a/generators/php/procedures.js b/generators/php/procedures.js
index ad2cc1849..15ba85d76 100644
--- a/generators/php/procedures.js
+++ b/generators/php/procedures.js
@@ -34,7 +34,7 @@ Blockly.PHP['procedures_defreturn'] = function(block) {
   // a local parameter.
   var globals = [];
   var variables = workspace.getAllVariables();
-  for (var i = 0, varName; varName = variables[i]; i++) {
+  for (var i = 0, varName; varName = variables[i].name; i++) {
     if (block.arguments_.indexOf(varName) == -1) {
       globals.push(Blockly.PHP.variableDB_.getName(varName,
           Blockly.Variables.NAME_TYPE));
diff --git a/generators/python.js b/generators/python.js
index 3babbde6a..e81a04234 100644
--- a/generators/python.js
+++ b/generators/python.js
@@ -163,7 +163,7 @@ Blockly.Python.init = function(workspace) {
   var defvars = [];
   var variables = workspace.getAllVariables();
   for (var i = 0; i < variables.length; i++) {
-    defvars[i] = Blockly.Python.variableDB_.getName(variables[i],
+    defvars[i] = Blockly.Python.variableDB_.getName(variables[i].name,
         Blockly.Variables.NAME_TYPE) + ' = None';
   }
   Blockly.Python.definitions_['variables'] = defvars.join('\n');