diff --git a/examples/args.h b/examples/args.h
index d626f98c8..4db0493bb 100644
--- a/examples/args.h
+++ b/examples/args.h
@@ -8,7 +8,7 @@ struct args_info {
 	int    argc;
 	char **argv;
 	int    pos;
-	int    opts_done : 1; /**< Did we see a -- separator */
+	unsigned int opts_done : 1; /**< Did we see a -- separator */
 };
 #define ARGS_INFO_INIT { argc, argv, 0, 0 }
 #define ARGS_CURRENT(args) args->argv[args->pos]
diff --git a/examples/checkout.c b/examples/checkout.c
index ac7b7422d..82567cdc4 100644
--- a/examples/checkout.c
+++ b/examples/checkout.c
@@ -35,9 +35,9 @@
  */
 
 typedef struct {
-	int force : 1;
-	int progress : 1;
-	int perf : 1;
+	unsigned int force : 1;
+	unsigned int progress : 1;
+	unsigned int perf : 1;
 } checkout_options;
 
 static void print_usage(void)
diff --git a/examples/merge.c b/examples/merge.c
index 460c06a25..7a76912cd 100644
--- a/examples/merge.c
+++ b/examples/merge.c
@@ -30,7 +30,7 @@ struct merge_options {
 	git_annotated_commit **annotated;
 	size_t annotated_count;
 
-	int no_commit : 1;
+	unsigned int no_commit : 1;
 };
 
 static void print_usage(void)