diff --git a/modules/highgui/src/cap_ios_video_camera.mm b/modules/highgui/src/cap_ios_video_camera.mm
index 45db2b60a1..42fd75555e 100644
--- a/modules/highgui/src/cap_ios_video_camera.mm
+++ b/modules/highgui/src/cap_ios_video_camera.mm
@@ -557,6 +557,8 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;};
                                                   withPresentationTime:lastSampleTime] ) {
                     NSLog(@"Video Writing Error");
                 }
+                if (pixelBuffer != nullptr)
+                    CVPixelBufferRelease(pixelBuffer);
             }
 
         }