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-rw-r--r--lib/spack/docs/build_settings.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/spack/docs/build_settings.rst b/lib/spack/docs/build_settings.rst
index ff597922e9..1b6912a2e6 100644
--- a/lib/spack/docs/build_settings.rst
+++ b/lib/spack/docs/build_settings.rst
@@ -148,7 +148,7 @@ Here's an example ``packages.yaml`` file that sets preferred packages:
gperftools:
version: [2.2, 2.4, 2.3]
all:
- compiler: [gcc@4.4.7, gcc@4.6:, intel, clang, pgi]
+ compiler: [gcc@4.4.7, 'gcc@4.6:', intel, clang, pgi]
providers:
mpi: [mvapich2, mpich, openmpi]