diff --git a/tools/editor/animation_editor.cpp b/tools/editor/animation_editor.cpp
index bb6f7e9a6f7..d431af6c8d1 100644
--- a/tools/editor/animation_editor.cpp
+++ b/tools/editor/animation_editor.cpp
@@ -3319,7 +3319,8 @@ void AnimationKeyEditor::_insert_delay() {
 void AnimationKeyEditor::_step_changed(float p_len) {
 
 	updating=true;
-	animation->set_step(p_len);
+	if (!animation.is_null())
+		animation->set_step(p_len);
 	updating=false;
 }