diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index 30e2d77..dec14f5 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -11418,7 +11418,7 @@ If you want to pass an array, say so:
 ##### Enforcement
 
 * Flag any arithmetic operation on an expression of pointer type that results in a value of pointer type.
-* Flag any indexing expression on an expression or variable of array type (either static array or `std::array`) where the indexer is not a compile-time constant expression with a value between `0` or and the upper bound of the array.
+* Flag any indexing expression on an expression or variable of array type (either static array or `std::array`) where the indexer is not a compile-time constant expression with a value between `0` and the upper bound of the array.
 * Flag any expression that would rely on implicit conversion of an array type to a pointer type.
 
 This rule is part of the [bounds-safety profile](#SS-bounds).