diff --git a/src/modules/systemlib/param/param.h b/src/modules/systemlib/param/param.h
index 04a37a229a..af9585eb42 100644
--- a/src/modules/systemlib/param/param.h
+++ b/src/modules/systemlib/param/param.h
@@ -382,7 +382,6 @@ union param_value_u {
 	void		*p;
 	int32_t		i;
 	float		f;
-	long long	x;
 };
 
 /**