diff --git a/src/main.h b/src/main.h
index 51379ff..d3ca67a 100644
--- a/src/main.h
+++ b/src/main.h
@@ -81,8 +81,8 @@
 #define PROTOCOL_DMRPLUS                5
 #define PROTOCOL_DMRMMDVM               6
 #define PROTOCOL_YSF                    7
-#define PROTOCOL_G3          			8
-#define PROTOCOL_IMRS					9
+#define PROTOCOL_G3                     8
+#define PROTOCOL_IMRS                   9
 
 // DExtra
 #define DEXTRA_PORT                     30001                               // UDP port