diff --git a/RF24.cpp b/RF24.cpp
index 91b5a2b..e38ee66 100644
--- a/RF24.cpp
+++ b/RF24.cpp
@@ -450,5 +450,5 @@ void RF24::openReadingPipe(uint8_t child, uint64_t value)
     write_register(EN_RXADDR,en_rx);
   }
 }
-// vim:ai sts=2 sw=2 ft=cpp
+// vim:ai:cin:sts=2 sw=2 ft=cpp
 
diff --git a/RF24.h b/RF24.h
index 0975fdf..4c4e653 100644
--- a/RF24.h
+++ b/RF24.h
@@ -347,5 +347,5 @@ public:
  */
 
 #endif // __RF24_H__
-// vim:ai sts=2 sw=2 ft=cpp
+// vim:ai:cin:sts=2 sw=2 ft=cpp