diff --git a/recipes/recipes_emscripten/argparse/recipe.yaml b/recipes/recipes_emscripten/argparse/recipe.yaml
index 92eacbd79..9910ebcb8 100644
--- a/recipes/recipes_emscripten/argparse/recipe.yaml
+++ b/recipes/recipes_emscripten/argparse/recipe.yaml
@@ -14,7 +14,7 @@ build:
 
 requirements:
   build:
-    - {{ compiler('cxx') }}
+    - "{{ compiler('cxx') }}"
     - cmake
     - make  # [unix]