diff --git a/features/lorawan/lorawan_types.h b/features/lorawan/lorawan_types.h
index 9d7edb7ae6..186eda07a1 100644
--- a/features/lorawan/lorawan_types.h
+++ b/features/lorawan/lorawan_types.h
@@ -665,7 +665,7 @@ typedef struct {
     /**
      * The SNR for the received packet.
      */
-    uint8_t snr;
+    int8_t snr;
     /**
      * A boolean to mark if the meta data is stale
      */
diff --git a/features/lorawan/system/lorawan_data_structures.h b/features/lorawan/system/lorawan_data_structures.h
index e3f2418820..fcf9d88f35 100644
--- a/features/lorawan/system/lorawan_data_structures.h
+++ b/features/lorawan/system/lorawan_data_structures.h
@@ -666,7 +666,7 @@ typedef struct {
     /*!
      * The SNR of the received packet.
      */
-    uint8_t snr;
+    int8_t snr;
     /*!
      * The receive window.
      *