diff --git a/bit_manipulation/index_of_rightmost_set_bit.py b/bit_manipulation/index_of_rightmost_set_bit.py
index c9c911660b08..80811a9372f2 100644
--- a/bit_manipulation/index_of_rightmost_set_bit.py
+++ b/bit_manipulation/index_of_rightmost_set_bit.py
@@ -4,8 +4,8 @@
 def get_index_of_rightmost_set_bit(number: int) -> int:
     """
     Take in a positive integer 'number'.
-    Returns the zero-based index of first set bit in that 'number' from right.
-    Returns -1, If no set bit found.
+    Return the zero-based index of the first set bit in 'number' starting from right.
+    Return -1 if the set bit is not found.
 
     >>> get_index_of_rightmost_set_bit(0)
     -1