diff --git a/plugins/mac-vth264/encoder.c b/plugins/mac-vth264/encoder.c
index a9aab1f64d649caa07f20e06998a9ad20a38c5d1..71e5e897eeecf534ba48503aa9dc10c3c823ff28 100644
--- a/plugins/mac-vth264/encoder.c
+++ b/plugins/mac-vth264/encoder.c
@@ -424,11 +424,12 @@ static void vt_h264_video_info(void *data, struct video_scale_info *info)
 		enc->vt_pix_fmt = enc->fullrange ?
 				  kCVPixelFormatType_420YpCbCr8PlanarFullRange
 				: kCVPixelFormatType_420YpCbCr8Planar;
-	} else if (info->format == VIDEO_FORMAT_I444) {
-		enc->obs_pix_fmt = info->format;
-		enc->vt_pix_fmt = kCVPixelFormatType_444YpCbCr10;
+		return;
 	}
 
+	if (info->format == VIDEO_FORMAT_I444)
+		VT_BLOG(LOG_WARNING, "I444 color format not supported");
+
 	// Anything else, return default
 	enc->obs_pix_fmt = VIDEO_FORMAT_NV12;
 	enc->vt_pix_fmt = enc->fullrange ?