diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 8f3a8a10b..f7c416ece 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -606,7 +606,11 @@ static void install_links(const char *busybox, int use_symbolic_links,
 	}
 }
 # else
-#  define install_links(x,y,z) ((void)0)
+static void install_links(const char *busybox UNUSED_PARAM,
+		int use_symbolic_links UNUSED_PARAM,
+		char *custom_install_dir UNUSED_PARAM)
+{
+}
 # endif
 
 /* If we were called as "busybox..." */