1 files changed, 2 insertions, 1 deletions
diff --git a/options.c b/options.c
index 71fda24f..90c0b914 100644
--- a/options.c
+++ b/options.c
@@ -228,7 +228,8 @@ static void print_rsync_version(enum logcode f)
 	STRUCT_STAT *dumstat;
 
 #if SUBPROTOCOL_VERSION != 0
-	asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION);
+	if (asprintf(&subprotocol, ".PR%d", SUBPROTOCOL_VERSION) < 0)
+		out_of_memory("print_rsync_version");
 #endif
 #ifdef HAVE_SOCKETPAIR
 	got_socketpair = "";