diff --git a/eBook/07.1.md b/eBook/07.1.md
index 9ac7982..c357837 100644
--- a/eBook/07.1.md
+++ b/eBook/07.1.md
@@ -69,7 +69,7 @@ IDIOM:
 
 IDIOM:
 
-	for i:= range arr1 {
+	for _,i:= range arr1 {
 	...
 	}