diff --git a/src/exception.cr b/src/exception.cr
index e419f07636f2..c60364e3b877 100644
--- a/src/exception.cr
+++ b/src/exception.cr
@@ -4,7 +4,7 @@ CallStack.skip(__FILE__)
 
 # Represents errors that occur during application execution.
 #
-# Exception and it's descendants are used to communicate between raise and
+# Exception and its descendants are used to communicate between raise and
 # rescue statements in `begin ... end` blocks.
 # Exception objects carry information about the exception – its type (the
 # exception’s class name), an optional descriptive string, and