diff --git a/firmware/l0dable/mp0ng.c b/firmware/l0dable/mp0ng.c
index 416c620..b8a7fb6 100644
--- a/firmware/l0dable/mp0ng.c
+++ b/firmware/l0dable/mp0ng.c
@@ -83,7 +83,7 @@ struct packet{
 		struct exit{
 			uint8_t reserved[26];
 		}__attribute__((packed)) exit;
-	} c;
+	}__attribute__((packed)) c;
 
 	uint16_t crc;	//checksum of the packet, automatically generated and verfied by the library
 }__attribute__((packed));
diff --git a/firmware/l0dable/r_player.c b/firmware/l0dable/r_player.c
index 3d2728c..c2602df 100644
--- a/firmware/l0dable/r_player.c
+++ b/firmware/l0dable/r_player.c
@@ -61,7 +61,7 @@ struct packet{
            uint16_t gameId;
            uint8_t reserved[17];
         }__attribute__((packed)) join;
-    }c;
+    }__attribute__((packed)) c;
     uint16_t crc;
 }__attribute__((packed));