diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index 75231156..335b6c94 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -254,7 +254,7 @@ CameraConfiguration::Status IPU3CameraConfiguration::validate()
 			rawSize.expandTo(cfg.size);
 		} else {
 			yuvCount++;
-			maxYuvSize.expandTo(cfg.size);
+			maxYuvSize = std::max(maxYuvSize, cfg.size);
 		}
 	}