diff --git a/src/blocks.js b/src/blocks.js
index 68a6333e48..bd9130bfe7 100644
--- a/src/blocks.js
+++ b/src/blocks.js
@@ -7614,7 +7614,9 @@ ScriptsMorph.prototype.moveBlock = function (block, target, hand) {
 };
 
 ScriptsMorph.prototype.addBlock = function (block) {
-    SnapActions.addBlock(block, this.scriptTarget(), block.position());
+    const target = this.parentThatIsA(BlockEditorMorph) ||
+        this.scriptTarget();
+    SnapActions.addBlock(block, target, block.position());
     block.destroy();
 };
 
diff --git a/test/blocks.spec.js b/test/blocks.spec.js
index bf795acdc7..25351208ac 100644
--- a/test/blocks.spec.js
+++ b/test/blocks.spec.js
@@ -418,6 +418,40 @@ describe('blocks', function() {
             );
         });
 
+        it('should add new block to block editor', async () => {
+            const {BlockEditorMorph} = driver.globals();
+            const sprite = driver.ide().currentSprite;
+            const spec = 'sprite block %s';
+            const definition = new CustomBlockDefinition(spec, sprite);
+
+            // Get the sprite
+            definition.category = 'motion';
+            await SnapActions.addCustomBlock(definition, sprite);
+
+            // Edit the custom block
+            driver.selectCategory('custom');
+            const customBlock = driver.palette().contents.children
+                .find(item => item instanceof CustomCommandBlockMorph);
+            driver.rightClick(customBlock);
+            let editBtn = driver.dialog().children.find(item => item.action === 'edit');
+            driver.click(editBtn);
+
+            const editor = driver.dialog();
+            const scripts = editor.body.contents;
+
+            driver.selectCategory('motion');
+            const positionBlock = driver.palette().contents.children
+                .find(item => item.selector === 'xPosition');
+
+            driver.dragAndDrop(positionBlock, scripts.center());
+            await driver.actionsSettled();
+            const block = Object.values(SnapActions._blocks)[0];
+            assert(
+                block.parentThatIsA(BlockEditorMorph),
+                'Expected position block to be in block editor'
+            );
+        });
+
         it('should be able to change type from dialog', async () => {
             var sprite = driver.ide().currentSprite,
                 spec = 'sprite block %s',