diff --git a/var/spack/repos/builtin/packages/trilinos/package.py b/var/spack/repos/builtin/packages/trilinos/package.py
index 7b913031e3d..7d7613d2b53 100644
--- a/var/spack/repos/builtin/packages/trilinos/package.py
+++ b/var/spack/repos/builtin/packages/trilinos/package.py
@@ -116,7 +116,7 @@ def install(self, spec, prefix):
         # superlu_dist
         options.extend([
             '-DTPL_ENABLE_SuperLUDist:BOOL=ON',
-            '-DSuperLUDist_INCLUDE_DIRS=%s' % spec['superlu_dist'].prefix.include
+            '-DSuperLUDist_INCLUDE_DIRS=%s' % spec['superlu-dist'].prefix.include
         ])
         if spec.satisfies('^superlu-dist@4.0:'):
             options.extend([