diff -r a2f9a9a62dc5 -r 896ed2afcfb8 project_files/HedgewarsMobile/Classes/MissionTrainingViewController.m
--- a/project_files/HedgewarsMobile/Classes/MissionTrainingViewController.m	Sun Apr 22 03:59:24 2012 +0200
+++ b/project_files/HedgewarsMobile/Classes/MissionTrainingViewController.m	Sun Apr 22 04:48:11 2012 +0200
@@ -89,7 +89,7 @@
         NSMutableArray *filteredArray = [[NSMutableArray alloc] initWithCapacity:[descArray count]/3];
         [descComplete release];
         // sanity check to avoid having missions and descriptions conflicts
-        for (int i = 0; i < [self.listOfMissions count]; i++) {
+        for (NSUInteger i = 0; i < [self.listOfMissions count]; i++) {
             NSString *desc = [[self.listOfMissions objectAtIndex:i] stringByDeletingPathExtension];
             for (NSString *str in descArray)
                 if ([str hasPrefix:desc] && [str hasSuffix:@"\""]) {