diff --git a/var/spack/repos/builtin/packages/namd/inherited-member.patch b/var/spack/repos/builtin/packages/namd/inherited-member-2.13.patch
similarity index 100%
rename from var/spack/repos/builtin/packages/namd/inherited-member.patch
rename to var/spack/repos/builtin/packages/namd/inherited-member-2.13.patch
diff --git a/var/spack/repos/builtin/packages/namd/package.py b/var/spack/repos/builtin/packages/namd/package.py
index f7cccc2b594..1da71d20f53 100644
--- a/var/spack/repos/builtin/packages/namd/package.py
+++ b/var/spack/repos/builtin/packages/namd/package.py
@@ -35,8 +35,8 @@ class Namd(MakefilePackage):
     # init_tcl_pointers() declaration and implementation are inconsistent
     # "src/colvarproxy_namd.C", line 482: error: inherited member is not
     # allowed
-    patch('inherited-member.patch', when='@:2.13')
-    patch('inherited-member-2.14.patch', when='@2.14:')
+    patch('inherited-member-2.13.patch', when='@2.13')
+    patch('inherited-member-2.14.patch', when='@2.14')
 
     depends_on('charmpp@6.10.1:', when="@2.14:")
     depends_on('charmpp@6.8.2', when="@2.13")