diff --git a/var/spack/repos/builtin/packages/bacio/package.py b/var/spack/repos/builtin/packages/bacio/package.py
index 875b7754a68..5213a39c487 100644
--- a/var/spack/repos/builtin/packages/bacio/package.py
+++ b/var/spack/repos/builtin/packages/bacio/package.py
@@ -41,5 +41,5 @@ def cmake_args(self):
         return args
 
     def patch(self):
-        if self.spec.satisifes("@2.4.1"):
+        if self.spec.satisfies("@2.4.1"):
             filter_file(".*", "2.4.1", "VERSION")