diff --git a/lib/spack/spack/user_environment.py b/lib/spack/spack/user_environment.py
index d8bd9feff60..c891ddd26b8 100644
--- a/lib/spack/spack/user_environment.py
+++ b/lib/spack/spack/user_environment.py
@@ -35,6 +35,7 @@ def prefix_inspections(platform):
         'include': ['CPATH'],
         'lib/pkgconfig': ['PKG_CONFIG_PATH'],
         'lib64/pkgconfig': ['PKG_CONFIG_PATH'],
+        'share/pkgconfig': ['PKG_CONFIG_PATH'],
         '': ['CMAKE_PREFIX_PATH']
     }