diff --git a/Makefile b/Makefile
index ed013f9..1c7dffa 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 APP=addlicense
 GROUP=devops
 REVISION=""
-VERSION=1.1.1$(REVISION)
+VERSION=1.1.2$(REVISION)
 DOCKER_REGISTRY=harbor.avroid.tech
 
 all:
diff --git a/main.go b/main.go
index bee76c4..a6c2dd5 100644
--- a/main.go
+++ b/main.go
@@ -37,9 +37,9 @@ Flags:
 `
 
 var (
-	skipExtensionFlags stringSlice
-	ignorePatterns     stringSlice
-	spdx               spdxFlag
+	skipExtensionFlags	stringSlice
+	ignorePatterns    	stringSlice
+	spdx              	spdxFlag
 
 	holder    = flag.String("c", "Avroid, Ltd.", "copyright holder")
 	license   = flag.String("l", "commercial", "license type: commercial, apache, bsd, mit, mpl")
@@ -156,10 +156,19 @@ func main() {
 						log.Printf("%s: %v", f.path, err)
 						return err
 					}
+					hasCorrectAvroidLicense, err := fileHasCorrectAvroidLicense(f.path, data)
+					if err != nil {
+						log.Printf("%s: %v", f.path, err)
+						return err
+					}
 					if !hasLicense {
-						fmt.Printf("%s\n", f.path)
+						fmt.Printf("%s: missing license header\n", f.path)
 						return errors.New("missing license header")
 					}
+					if !hasCorrectAvroidLicense {
+						fmt.Printf("%s: incorrect year in license header\n", f.path)
+						return errors.New("incorrect year in license header")
+					}
 				} else {
 					modified, err := addLicense(f.path, f.mode, t, data)
 					if err != nil {
@@ -267,6 +276,17 @@ func fileHasLicense(path string) (bool, error) {
 	return hasLicense(b) || isGenerated(b), nil
 }
 
+// fileHasLicense reports whether the file at path contains a correct Avroid license header.
+func fileHasCorrectAvroidLicense(path string, data licenseData) (bool, error) {
+	b, err := ioutil.ReadFile(path)
+	if err != nil {
+		return false, err
+	}
+	// If generated, we count it as if it has a license.
+	return hasCorrectAvroidLicense(b, data), nil
+}
+
+// licenseHeader populates the provided license template with data, and returns
 // licenseHeader populates the provided license template with data, and returns
 // it with the proper prefix for the file type specified by path. The file does
 // not need to actually exist, only its name is used to determine the prefix.
@@ -276,9 +296,9 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 	base := strings.ToLower(filepath.Base(path))
 
 	switch fileExtension(base) {
-	case ".c", ".h", ".gv", ".java", ".scala", ".kt", ".kts":
+	case ".c", ".h", ".gv", ".java", ".scala", ".kt", ".kts", ".qml":
 		lic, err = executeTemplate(tmpl, data, "/*", " * ", " */")
-	case ".js", ".mjs", ".cjs", ".jsx", ".tsx", ".css", ".scss", ".sass", ".ts":
+	case ".js", ".mjs", ".cjs", ".jsx", ".tsx", ".css", ".scss", ".sass":
 		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, "", "// ", "")
@@ -290,7 +310,7 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 		lic, err = executeTemplate(tmpl, data, "", "% ", "")
 	case ".hs", ".sql", ".sdl":
 		lic, err = executeTemplate(tmpl, data, "", "-- ", "")
-	case ".html", ".xml", ".vue", ".wxi", ".wxl", ".wxs":
+	case ".html", ".xml", ".vue", ".wxi", ".wxl", ".wxs", ".qrc":
 		lic, err = executeTemplate(tmpl, data, "<!--", " ", "-->")
 	case ".php":
 		lic, err = executeTemplate(tmpl, data, "", "// ", "")
@@ -298,11 +318,19 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 		lic, err = executeTemplate(tmpl, data, "{#", "", "#}")
 	case ".ml", ".mli", ".mll", ".mly":
 		lic, err = executeTemplate(tmpl, data, "(**", "   ", "*)")
+	case ".ts":
+		lic, err = executeTemplate(tmpl, data, "/**", " * ", " */")
+		if err != nil {
+			lic, err = executeTemplate(tmpl, data, "<!--", " ", "-->")
+		}
 	default:
 		// handle various cmake files
 		if base == "cmakelists.txt" || strings.HasSuffix(base, ".cmake.in") || strings.HasSuffix(base, ".cmake") {
 			lic, err = executeTemplate(tmpl, data, "", "# ", "")
 		}
+		if base == "Jenkinsfile" || strings.HasSuffix(base, ".groovy") {
+			lic, err = executeTemplate(tmpl, data, "", "// ", "")
+		}
 	}
 	return lic, err
 }
@@ -357,11 +385,23 @@ func isGenerated(b []byte) bool {
 }
 
 func hasLicense(b []byte) bool {
-	n := 1000
-	if len(b) < 1000 {
+	n := 500
+	if len(b) < 500 {
 		n = len(b)
 	}
 	return bytes.Contains(bytes.ToLower(b[:n]), []byte("copyright")) ||
 		bytes.Contains(bytes.ToLower(b[:n]), []byte("mozilla public")) ||
 		bytes.Contains(bytes.ToLower(b[:n]), []byte("spdx-license-identifier"))
 }
+
+func hasCorrectAvroidLicense(b []byte, data licenseData) bool {
+	n := 500
+	if len(b) < 500 {
+		n = len(b)
+	}
+	if bytes.Contains(bytes.ToLower(b[:n]), []byte("avroid, ltd. written permission")) {
+		return bytes.Contains(bytes.ToLower(b[:n]), []byte(fmt.Sprintf("copyright (c) avroid, ltd., %s", data.Year)))
+	}
+
+	return true
+}
diff --git a/tmpl.go b/tmpl.go
index 83da7f2..7130ed4 100644
--- a/tmpl.go
+++ b/tmpl.go
@@ -89,7 +89,7 @@ func executeTemplate(t *template.Template, d licenseData, top, mid, bot string)
 	return out.Bytes(), nil
 }
 
-const tmplCommercial = `Copyright {{.Holder}} {{ if .Year }} 2023-{{.Year}}{{ end }}
+const tmplCommercial = `Copyright {{.Holder}} {{ if .Year }} {{.Year}}{{ end }}
 
 You can not use the contents of the file in any way without
 AVROID, Ltd. written permission.