diff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp
index 8e782347c..6df5882f7 100644
--- a/src/libcamera/stream.cpp
+++ b/src/libcamera/stream.cpp
@@ -279,7 +279,7 @@ SizeRange StreamFormats::range(const PixelFormat &pixelformat) const
  * handlers provide StreamFormats.
  */
 StreamConfiguration::StreamConfiguration()
-	: pixelFormat(0), stream_(nullptr)
+	: pixelFormat(0), stride(0), bufferCount(0), stream_(nullptr)
 {
 }
 
@@ -287,7 +287,8 @@ StreamConfiguration::StreamConfiguration()
  * \brief Construct a configuration with stream formats
  */
 StreamConfiguration::StreamConfiguration(const StreamFormats &formats)
-	: pixelFormat(0), stream_(nullptr), formats_(formats)
+	: pixelFormat(0), stride(0), bufferCount(0), stream_(nullptr),
+	  formats_(formats)
 {
 }