diff --git a/src/server/sv_init.c b/src/server/sv_init.c
index c93667cc..9b3ca4f2 100644
--- a/src/server/sv_init.c
+++ b/src/server/sv_init.c
@@ -232,7 +232,7 @@ void SV_SpawnServer (char *server, char *spawnpoint, server_state_t serverstate,
 		sv.models[1] = CM_LoadMap (sv.configstrings[CS_MODELS+1], false, &checksum);
 	}
 	Com_sprintf (sv.configstrings[CS_MAPCHECKSUM],sizeof(sv.configstrings[CS_MAPCHECKSUM]),
-		"%u", checksum);
+		"%i", checksum);
 
 	//
 	// clear physics interaction links