diff --git a/src/index.js b/src/index.js
index 28603a9..23447f6 100755
--- a/src/index.js
+++ b/src/index.js
@@ -5,7 +5,7 @@
 const urlRegex = /^(ftp|http)s?:\/\/[^\s]+/;
 const emailRegex = /^\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/;
 const addressRegex = /^@[a-zA-Z0-9]+/;
-const actionWordRegex = /^:.*:$/;
+const actionWordRegex = /^:[^:]+:$/;
 
 const optionDefinitions = [
     { name: 'sparse', alias: 's', type: Boolean, description: 'Print only the files, lines that have POS annotations.'},