diff --git a/lottie-ios/Classes/AnimatableProperties/LOTAnimatableNumberValue.m b/lottie-ios/Classes/AnimatableProperties/LOTAnimatableNumberValue.m
index 938d106673..00a6fb7d7f 100644
--- a/lottie-ios/Classes/AnimatableProperties/LOTAnimatableNumberValue.m
+++ b/lottie-ios/Classes/AnimatableProperties/LOTAnimatableNumberValue.m
@@ -54,7 +54,7 @@
   _startFrame = keyframes.firstObject[@"t"];
   NSNumber *endFrame = keyframes.lastObject[@"t"];
   
-  NSAssert((_startFrame && endFrame && _startFrame.integerValue < endFrame.integerValue),
+  NSAssert((_startFrame && endFrame && _startFrame.integerValue <= endFrame.integerValue),
            @"Lottie: Keyframe animation has incorrect time values or invalid number of keyframes");
   // Calculate time duration
   _durationFrames = @(endFrame.floatValue - _startFrame.floatValue);