diff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp
index 978d72752..f091487c9 100644
--- a/src/libcamera/stream.cpp
+++ b/src/libcamera/stream.cpp
@@ -407,7 +407,8 @@ std::string StreamConfiguration::toString() const
  */
 std::ostream &operator<<(std::ostream &out, const StreamConfiguration &cfg)
 {
-	out << cfg.size << "-" << cfg.pixelFormat;
+	out << cfg.size << "-" << cfg.pixelFormat << "/"
+	    << ColorSpace::toString(cfg.colorSpace);
 	return out;
 }