diff --git a/components/style/properties/gecko.mako.rs b/components/style/properties/gecko.mako.rs
index 146c8827b9d..a9f08d76070 100644
--- a/components/style/properties/gecko.mako.rs
+++ b/components/style/properties/gecko.mako.rs
@@ -2850,9 +2850,21 @@ fn static_assert() {
 
 
     pub fn copy_${shorthand}_image_from(&mut self, other: &Self) {
+        use gecko_bindings::structs::nsStyleImageLayers_LayerType as LayerType;
         unsafe {
-            Gecko_CopyImageValueFrom(&mut self.gecko.${image_layers_field}.mLayers.mFirstElement.mImage,
-                                     &other.gecko.${image_layers_field}.mLayers.mFirstElement.mImage);
+            let count = other.gecko.${image_layers_field}.mImageCount;
+            unsafe {
+                Gecko_EnsureImageLayersLength(&mut self.gecko.${image_layers_field},
+                                              count as usize,
+                                              LayerType::${shorthand.capitalize()});
+            }
+
+            for (layer, other) in self.gecko.${image_layers_field}.mLayers.iter_mut()
+                                      .zip(other.gecko.${image_layers_field}.mLayers.iter())
+                                      .take(count as usize) {
+                Gecko_CopyImageValueFrom(&mut layer.mImage, &other.mImage);
+            }
+            self.gecko.${image_layers_field}.mImageCount = count;
         }
     }