1 files changed, 3 insertions, 0 deletions
diff --git a/gm/3dgm.cpp b/gm/3dgm.cpp
index 93c6f92281..8014c246d3 100644
--- a/gm/3dgm.cpp
+++ b/gm/3dgm.cpp
@@ -173,6 +173,9 @@ protected:
     SkString onShortName() override { return SkString("3dgm"); }
 
     bool onAnimate(const SkAnimTimer& timer) override {
+        if (!fAnim) {
+            return false;
+        }
         SkScalar dur = fAnim->duration();
         fAnimT = fmod(timer.secs(), dur) / dur;
         return true;