diff --git a/var/spack/repos/builtin/packages/minc-toolkit/package.py b/var/spack/repos/builtin/packages/minc-toolkit/package.py
index 30273d4afc..ddf20c7bfc 100644
--- a/var/spack/repos/builtin/packages/minc-toolkit/package.py
+++ b/var/spack/repos/builtin/packages/minc-toolkit/package.py
@@ -43,3 +43,6 @@ def cmake_args(self):
             # should be packaged separately with newer ITK
             "-DMT_BUILD_ELASTIX=OFF",
         ]
+
+    def setup_run_environment(self, env):
+        env.set("MINC_TOOLKIT", self.prefix)