diff --git a/en/fpv-openipc-aio-mario.md b/en/fpv-openipc-aio-mario.md
index 68ef39e..f32db7e 100644
--- a/en/fpv-openipc-aio-mario.md
+++ b/en/fpv-openipc-aio-mario.md
@@ -108,7 +108,7 @@ Default Antenna is ANT1 for 1T1R, ANT0+ANT1 is 2T2R
 
 Reconmand RF setting 
   
-  RF Power max 18dbm for onbard PA.For 1T1R rf setting range:1-63 firmware update to latest!
+  RF Power max 18dbm for onbard PA. For 1T1R rf setting range: 1-63 firmware update to latest!
   
   MCS index 1,3(0-7 is 1T1R, 8+ is 2T2R)