diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 3d22f81..ea81247 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -10,7 +10,7 @@ source:
   sha256: 5b38fa235d270e33b2b4c5183e22ab91c703c5f850c3518722bbebc93d2ac5a0
 
 build:
-  script: {{ PYTHON }} -m pip install . -vv
+  script: CMAKE_GENERATOR="Ninja" {{ PYTHON }} -m pip install . -vv
   # Skip Windows build until qiskit-terra has a Windows build
   # Skip macOS build until https://github.com/Qiskit/qiskit-aer/issues/1689 is addressed
   skip: true  # [win or osx]
@@ -18,7 +18,6 @@ build:
   script_env:
     - DISABLE_DEPENDENCY_INSTALL=ON
     - DISABLE_CONAN=ON
-    - CMAKE_GENERATOR="Ninja"
 
 requirements:
   build: