diff --git a/var/spack/repos/builtin/packages/libsigsegv/patch.new_config_guess b/var/spack/repos/builtin/packages/libsigsegv/new_config_guess.patch
similarity index 100%
rename from var/spack/repos/builtin/packages/libsigsegv/patch.new_config_guess
rename to var/spack/repos/builtin/packages/libsigsegv/new_config_guess.patch
diff --git a/var/spack/repos/builtin/packages/libsigsegv/package.py b/var/spack/repos/builtin/packages/libsigsegv/package.py
index f2dc8408918..94943e15730 100644
--- a/var/spack/repos/builtin/packages/libsigsegv/package.py
+++ b/var/spack/repos/builtin/packages/libsigsegv/package.py
@@ -23,7 +23,7 @@ class Libsigsegv(AutotoolsPackage, GNUMirrorPackage):
     version("2.11", sha256="dd7c2eb2ef6c47189406d562c1dc0f96f2fc808036834d596075d58377e37a18")
     version("2.10", sha256="8460a4a3dd4954c3d96d7a4f5dd5bc4d9b76f5754196aa245287553b26d2199a")
 
-    patch("patch.new_config_guess", when="@2.10")
+    patch("new_config_guess.patch", when="@2.10")
 
     def configure_args(self):
         return ["--enable-shared"]