diff --git a/main.go b/main.go
index 2ba7ef9..ca27bdb 100644
--- a/main.go
+++ b/main.go
@@ -295,7 +295,7 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 		lic, err = executeTemplate(tmpl, data, "/**", " * ", " */")
 	case ".cc", ".cpp", ".cs", ".go", ".hcl", ".hh", ".hpp", ".m", ".mm", ".proto", ".rs", ".swift", ".dart", ".groovy", ".v", ".sv":
 		lic, err = executeTemplate(tmpl, data, "", "// ", "")
-	case ".py", ".sh", ".yaml", ".yml", ".dockerfile", "dockerfile", ".rb", "gemfile", ".tcl", ".bzl", ".pl", ".pp":
+	case ".py", ".sh", ".yaml", ".yml", ".dockerfile", "dockerfile", ".rb", "gemfile", ".tcl", ".bzl", ".pl", ".pp", "build":
 		lic, err = executeTemplate(tmpl, data, "", "# ", "")
 	case ".el", ".lisp":
 		lic, err = executeTemplate(tmpl, data, "", ";; ", "")
diff --git a/main_test.go b/main_test.go
index 9b0df64..af83eb6 100644
--- a/main_test.go
+++ b/main_test.go
@@ -316,7 +316,7 @@ func TestLicenseHeader(t *testing.T) {
 			"// HYS\n\n",
 		},
 		{
-			[]string{"f.py", "f.sh", "f.yaml", "f.yml", "f.dockerfile", "dockerfile", "f.rb", "gemfile", "f.tcl", "f.bzl", "f.pl", "f.pp"},
+			[]string{"f.py", "f.sh", "f.yaml", "f.yml", "f.dockerfile", "dockerfile", "f.rb", "gemfile", "f.tcl", "f.bzl", "f.pl", "f.pp", "build"},
 			"# HYS\n\n",
 		},
 		{