diff --git a/bin/kafka-run-class.sh b/bin/kafka-run-class.sh
index c60419bb473..99564bc022a 100755
--- a/bin/kafka-run-class.sh
+++ b/bin/kafka-run-class.sh
@@ -20,7 +20,7 @@ then
   exit 1
 fi
 
-# CYGINW == 1 if Cygwin is detected, else 0.
+# CYGWIN == 1 if Cygwin is detected, else 0.
 if [[ $(uname -a) =~ "CYGWIN" ]]; then
   CYGWIN=1
 else