diff --git a/subjects/matrix_ops/README.md b/subjects/matrix_ops/README.md
index 4c556d053..18561ead7 100644
--- a/subjects/matrix_ops/README.md
+++ b/subjects/matrix_ops/README.md
@@ -4,7 +4,7 @@
 
 In this exercise, you will define some basic matrix operations, Implement traits for `Add` and `Sub`
 
-Remember that two matrices can only be added or subtracted if they have they have the same dimensions. Therefore, you must handle the possibility of failure by returning an `Option<T>`.
+Remember that two matrices can only be added or subtracted if they have the same dimensions. Therefore, you must handle the possibility of failure by returning an `Option<T>`.
 
 You will be reusing your `Matrix` and `Scalar` structures defined in the [matrix](../matrix/README.md) and [lalgebra_scalar](../lalgebra_scalar/README.md) exercises.