diff --git a/var/spack/repos/builtin/packages/saga-gis/package.py b/var/spack/repos/builtin/packages/saga-gis/package.py
index 50ce549a1ef..bb867da7868 100644
--- a/var/spack/repos/builtin/packages/saga-gis/package.py
+++ b/var/spack/repos/builtin/packages/saga-gis/package.py
@@ -56,6 +56,7 @@ class SagaGis(AutotoolsPackage, SourceforgePackage):
     depends_on('automake', type='build')
     depends_on('libtool',  type='build')
     depends_on('m4',       type='build')
+    depends_on('libsm',    type='link')
 
     depends_on('libharu')
     depends_on('wxwidgets')