diff --git a/src/gstreamer/gstlibcamera-utils.cpp b/src/gstreamer/gstlibcamera-utils.cpp
index a548b0c1..66fc8642 100644
--- a/src/gstreamer/gstlibcamera-utils.cpp
+++ b/src/gstreamer/gstlibcamera-utils.cpp
@@ -13,7 +13,7 @@
 
 using namespace libcamera;
 
-static struct {
+static const struct {
 	GstVideoFormat gst_format;
 	PixelFormat format;
 } format_map[] = {