diff --git a/.github/workflows/run_book_tests.yml b/.github/workflows/run_book_tests.yml
index d56d331..899a3b9 100644
--- a/.github/workflows/run_book_tests.yml
+++ b/.github/workflows/run_book_tests.yml
@@ -33,7 +33,7 @@ jobs:
           
       - name: Run tests
         run: |
-          matlab -batch runtests("test/book")
+          matlab -batch 'runtests("test/book")'
           
       #- name: Run MATLAB Tests
         # Only run tests in folder test/book