diff -up cdogs-sdl-0.4/src/files.c~ cdogs-sdl-0.4/src/files.c
--- cdogs-sdl-0.4/src/files.c~	2007-08-12 10:26:02.000000000 +0200
+++ cdogs-sdl-0.4/src/files.c	2007-08-12 10:26:02.000000000 +0200
@@ -340,7 +340,7 @@ int SaveCampaign(const char *filename, T
 	int f;
 	int i;
 
-	f = open(filename, O_WRONLY | O_CREAT | O_TRUNC);
+	f = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
 	if (f >= 0) {
 		i = CAMPAIGN_MAGIC;
 		write(f, &i, sizeof(i));