diff --git a/src/libcamera/pipeline/ipu3/imgu.cpp b/src/libcamera/pipeline/ipu3/imgu.cpp
index 3e517ac67962..f3eaab648399 100644
--- a/src/libcamera/pipeline/ipu3/imgu.cpp
+++ b/src/libcamera/pipeline/ipu3/imgu.cpp
@@ -126,7 +126,7 @@ void calculateBDSHeight(ImgUDevice::Pipe *pipe, const Size &iif, const Size &gdc
 	unsigned int minIFHeight = iif.height - IF_CROP_MAX_H;
 	unsigned int minBDSHeight = gdc.height + FILTER_H * 2;
 	unsigned int ifHeight;
-	float bdsHeight;
+	float bdsHeight = 0.0f;
 
 	if (!isSameRatio(pipe->input, gdc)) {
 		unsigned int foundIfHeight = 0;