diff --git a/tmk_core/protocol/lufa/adafruit_ble.cpp b/tmk_core/protocol/lufa/adafruit_ble.cpp
index 37194e77a..fd6edd42c 100644
--- a/tmk_core/protocol/lufa/adafruit_ble.cpp
+++ b/tmk_core/protocol/lufa/adafruit_ble.cpp
@@ -86,7 +86,7 @@ struct queue_item {
 
     uint16_t consumer;
     struct __attribute__((packed)) {
-      uint8_t x, y, scroll, pan;
+      int8_t x, y, scroll, pan;
     } mousemove;
   };
 };