diff --git a/openbsc/include/openbsc/gprs_ns.h b/openbsc/include/openbsc/gprs_ns.h
index f0ec26e..7045d84 100644
--- a/openbsc/include/openbsc/gprs_ns.h
+++ b/openbsc/include/openbsc/gprs_ns.h
@@ -154,7 +154,7 @@
 	struct {
 		struct osmo_fd fd;
 		uint32_t local_ip;
-		int enabled:1;
+		unsigned int enabled:1;
 	} frgre;
 };
 
diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h
index bddf046..781e43a 100644
--- a/openbsc/include/openbsc/gsm_data_shared.h
+++ b/openbsc/include/openbsc/gsm_data_shared.h
@@ -521,10 +521,10 @@
 		} hsl;
 		struct {
 			uint8_t bts_type;
-			int configured:1,
-			    skip_reset:1,
-			    did_reset:1,
-			    wait_reset:1;
+			unsigned int configured:1,
+				skip_reset:1,
+				did_reset:1,
+				wait_reset:1;
 			struct osmo_timer_list reset_timer;
 		} nokia;
 	};