diff --git a/include/libcamera/base/log.h b/include/libcamera/base/log.h
index b5775e491..df27df034 100644
--- a/include/libcamera/base/log.h
+++ b/include/libcamera/base/log.h
@@ -48,6 +48,7 @@ private:
 extern const LogCategory &_LOG_CATEGORY(name)();
 
 #define LOG_DEFINE_CATEGORY(name)					\
+LOG_DECLARE_CATEGORY(name)						\
 const LogCategory &_LOG_CATEGORY(name)()				\
 {									\
 	/* The instance will be deleted by the Logger destructor. */	\