diff --git a/dist/index.js b/dist/index.js
index 329860d..d41d3df 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -6654,7 +6654,7 @@ function optionalStringArray(argumentName, rawValue) {
         return undefined;
     }
     // split value by space and comma
-    return rawValue.split("\n").filter(str => str !== "");
+    return rawValue.split(" - ").filter(str => str !== "");
 }
 
 
diff --git a/src/main.ts b/src/main.ts
index dbf5d7c..7bc7eaf 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -136,5 +136,5 @@ function optionalStringArray(argumentName: string, rawValue: string): string[] |
   }
 
   // split value by space and comma
-  return rawValue.split("\n").filter(str => str !== "");
+  return rawValue.split(" - ").filter(str => str !== "");
 }