diff --git a/plugins/discovery_test.go b/plugins/discovery_test.go
index 38b73ef..2e8dc70 100644
--- a/plugins/discovery_test.go
+++ b/plugins/discovery_test.go
@@ -32,7 +32,7 @@ func TestFileSpecPlugin(t *testing.T) {
 		addr string
 		fail bool
 	}{
-		// TODO Windows: Factor out the unix:// varients.
+		// TODO Windows: Factor out the unix:// variants.
 		{filepath.Join(tmpdir, "echo.spec"), "echo", "unix://var/lib/docker/plugins/echo.sock", false},
 		{filepath.Join(tmpdir, "echo", "echo.spec"), "echo", "unix://var/lib/docker/plugins/echo.sock", false},
 		{filepath.Join(tmpdir, "foo.spec"), "foo", "tcp://localhost:8080", false},
diff --git a/tarsum/tarsum_spec.md b/tarsum/tarsum_spec.md
index 77927ee..89b2e49 100644
--- a/tarsum/tarsum_spec.md
+++ b/tarsum/tarsum_spec.md
@@ -223,7 +223,7 @@ with matching paths, and orders the list of file sums accordingly [3].
 * [2] Tar http://en.wikipedia.org/wiki/Tar_%28computing%29
 * [3] Name collision https://github.com/docker/docker/commit/c5e6362c53cbbc09ddbabd5a7323e04438b57d31
 
-## Acknowledgements
+## Acknowledgments
 
 Joffrey F (shin-) and Guillaume J. Charmes (creack) on the initial work of the
 TarSum calculation.