diff --git a/var/spack/repos/builtin/packages/spiner/package.py b/var/spack/repos/builtin/packages/spiner/package.py
index 8eb46f6ef62..bc1d1d7572f 100644
--- a/var/spack/repos/builtin/packages/spiner/package.py
+++ b/var/spack/repos/builtin/packages/spiner/package.py
@@ -71,7 +71,7 @@ def cmake_args(self):
             self.define_from_variant("SPINER_USE_HDF", "hdf5")
         ]
         if '+cuda' in self.spec:
-            args.append(define(
-                'CMAKE_CUDA_ARCHITECTURES', spec.variants['cuda_arch'].value
+            args.append(self.define(
+                'CMAKE_CUDA_ARCHITECTURES', self.spec.variants['cuda_arch'].value
             ))
         return args