diff --git a/curriculum/challenges/english/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-a.md b/curriculum/challenges/english/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-a.md
index 77a9380807..a0375b7026 100644
--- a/curriculum/challenges/english/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-a.md
+++ b/curriculum/challenges/english/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-a.md
@@ -30,7 +30,7 @@ question:
     - |
       Often you won't work directly with Numpy.
     - |
-      It's is extremely slow.
+      It is extremely slow.
     - |
       Working with Numpy is difficult.
   solution: 1