diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
index 35e066499..8e22c90c1 100644
--- a/src/libcamera/pipeline/simple/simple.cpp
+++ b/src/libcamera/pipeline/simple/simple.cpp
@@ -1588,6 +1588,7 @@ int SimplePipelineHandler::configure(Camera *camera, CameraConfiguration *c)
 	V4L2DeviceFormat captureFormat;
 	captureFormat.fourcc = videoFormat;
 	captureFormat.size = pipeConfig->captureSize;
+	captureFormat.planesCount = 1;
 
 	uint32_t requested_bpl = 0;
 	if (data->swIsp_)