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-rw-r--r--lib/spack/docs/build_systems/cudapackage.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/spack/docs/build_systems/cudapackage.rst b/lib/spack/docs/build_systems/cudapackage.rst
index b4561c69ed..15150599d3 100644
--- a/lib/spack/docs/build_systems/cudapackage.rst
+++ b/lib/spack/docs/build_systems/cudapackage.rst
@@ -37,7 +37,7 @@ In order to use it, just add another base class to your package, for example:
if '+cuda' in spec:
options.append('-DWITH_CUDA=ON')
cuda_arch = spec.variants['cuda_arch'].value
- if cuda_arch is not None:
+ if cuda_arch != 'none':
options.append('-DCUDA_FLAGS=-arch=sm_{0}'.format(cuda_arch[0]))
else:
options.append('-DWITH_CUDA=OFF')