diff --git a/packages/animations/browser/src/render/css_keyframes/element_animation_style_handler.ts b/packages/animations/browser/src/render/css_keyframes/element_animation_style_handler.ts
index 03e06889d30b2..e5c348e6d4adf 100644
--- a/packages/animations/browser/src/render/css_keyframes/element_animation_style_handler.ts
+++ b/packages/animations/browser/src/render/css_keyframes/element_animation_style_handler.ts
@@ -134,7 +134,7 @@ function setAnimationStyle(element: any, name: string, value: string, index?: nu
 }
 
 function getAnimationStyle(element: any, name: string) {
-  return element.style[ANIMATION_PROP + name];
+  return element.style[ANIMATION_PROP + name] | '';
 }
 
 function countChars(value: string, char: string): number {