diff --git a/app/render/videoparams.cpp b/app/render/videoparams.cpp
index a71e80327..585ae03b3 100644
--- a/app/render/videoparams.cpp
+++ b/app/render/videoparams.cpp
@@ -113,7 +113,6 @@ bool VideoRenderingParams::is_valid() const
 {
   return (width() > 0
           && height() > 0
-          && !time_base().isNull()
           && format_ != PixelFormat::PIX_FMT_INVALID
           && format_ != PixelFormat::PIX_FMT_COUNT);
 }