diff --git a/var/spack/repos/builtin/packages/pgi/package.py b/var/spack/repos/builtin/packages/pgi/package.py
index 5be94303355..aa6e60ddcc4 100644
--- a/var/spack/repos/builtin/packages/pgi/package.py
+++ b/var/spack/repos/builtin/packages/pgi/package.py
@@ -91,6 +91,9 @@ def install(self, spec, prefix):
     def setup_run_environment(self, env):
         prefix = Prefix(join_path(self.prefix, 'linux86-64', self.version))
 
+        env.prepend_path('PATH', prefix.bin)
+        env.prepend_path('MANPATH', prefix.man)
+        env.prepend_path('LD_LIBRARY_PATH', prefix.lib)
         env.set('CC',  join_path(prefix.bin, 'pgcc'))
         env.set('CXX', join_path(prefix.bin, 'pgc++'))
         env.set('F77', join_path(prefix.bin, 'pgfortran'))