diff --git a/divide_and_conquer/strassen_matrix_multiplication.py b/divide_and_conquer/strassen_matrix_multiplication.py
index c0725b1c9..bfced547d 100644
--- a/divide_and_conquer/strassen_matrix_multiplication.py
+++ b/divide_and_conquer/strassen_matrix_multiplication.py
@@ -145,7 +145,7 @@ def strassen(matrix1: List, matrix2: List) -> List:
 
 
 if __name__ == "__main__":
-    matrix1= [
+    matrix1 = [
         [2, 3, 4, 5],
         [6, 4, 3, 1],
         [2, 3, 6, 7],