diff --git a/sources/grabber/macOS/macOsGrabber.mm b/sources/grabber/macOS/macOsGrabber.mm
index 7a7921159..87235f6c5 100644
--- a/sources/grabber/macOS/macOsGrabber.mm
+++ b/sources/grabber/macOS/macOsGrabber.mm
@@ -258,7 +258,8 @@
 				_actualWidth = CGImageGetWidth(display);
 				_actualHeight = CGImageGetHeight(display);
 
-				processSystemFrameBGRA(rawData);
+				size_t bytesPerRow = CGImageGetBytesPerRow(display);
+				processSystemFrameBGRA(rawData, static_cast<int>(bytesPerRow));
 
 				CFRelease(sysData);
 			}