1 files changed, 4 insertions, 4 deletions
diff --git a/src/components/protocol_handler/include/protocol_handler/protocol_packet.h b/src/components/protocol_handler/include/protocol_handler/protocol_packet.h
index 31b4c12ea6..4d9b6e462c 100644
--- a/src/components/protocol_handler/include/protocol_handler/protocol_packet.h
+++ b/src/components/protocol_handler/include/protocol_handler/protocol_packet.h
@@ -79,13 +79,13 @@ class ProtocolPacket {
     uint8_t majorVersion;
     uint8_t minorVersion;
     uint8_t patchVersion;
-    static inline uint8_t cmp(const ProtocolVersion& version1,
+    static inline int16_t cmp(const ProtocolVersion& version1,
                               const ProtocolVersion& version2) {
-      uint8_t diff = version1.majorVersion - version2.majorVersion;
+      int16_t diff = static_cast<int16_t>(version1.majorVersion - version2.majorVersion);
       if (diff == 0) {
-        diff = version1.minorVersion - version2.minorVersion;
+        diff = static_cast<int16_t>(version1.minorVersion - version2.minorVersion);
         if (diff == 0) {
-          diff = version1.minorVersion - version2.minorVersion;
+          diff = static_cast<int16_t>(version1.patchVersion - version2.patchVersion);
         }
       }
       return diff;