diff --git a/core/field_image.js b/core/field_image.js
index 8ee57bc6a..6c2c11793 100644
--- a/core/field_image.js
+++ b/core/field_image.js
@@ -175,6 +175,13 @@ Blockly.FieldImage.prototype.render_ = function() {
   // NOP
 };
 
+/**
+ * Images are fixed width, no need to render even if forced.
+ */
+Blockly.FieldImage.prototype.forceRerender = function() {
+  // NOP
+};
+
 /**
  * Images are fixed width, no need to update.
  * @private