diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h
index fc4e2fb..72e4c93 100644
--- a/include/osmocom/core/logging.h
+++ b/include/osmocom/core/logging.h
@@ -9,6 +9,7 @@
 
 #include <stdio.h>
 #include <stdint.h>
+#include <stdarg.h>
 #include <osmocom/core/linuxlist.h>
 
 /*! \brief Maximum number of logging contexts */