diff --git a/var/spack/repos/spack_repo/builtin/packages/msvc/package.py b/var/spack/repos/spack_repo/builtin/packages/msvc/package.py
index 9ad20b54af9..97a8dfd1d60 100644
--- a/var/spack/repos/spack_repo/builtin/packages/msvc/package.py
+++ b/var/spack/repos/spack_repo/builtin/packages/msvc/package.py
@@ -59,7 +59,7 @@ def install(self, spec, prefix):
 
     @classmethod
     def determine_version(cls, exe):
-        if not exe.name.endswith(".exe") and not exe.name.endswith(".bat"):
+        if not exe.endswith(".exe") and not exe.endswith(".bat"):
             # Not on windows, can't possibly be msvc
             return