diff --git a/src/CommandManager.ts b/src/CommandManager.ts
index cedf50e..ec8d408 100644
--- a/src/CommandManager.ts
+++ b/src/CommandManager.ts
@@ -158,6 +158,10 @@ export class CommandManager {
                         throw new MissingParameterError(p);
                     }
                     switch (p.type) {
+                        case "mentionable":
+                        case "channel":
+                        case "role":
+                        case "user":
                         case "string":
                             parameters.push(
                                 new StringParameter(p, paramsList[i])
@@ -208,6 +212,10 @@ export class CommandManager {
                         return;
                     }
                     switch (p.type) {
+                        case "mentionable":
+                        case "channel":
+                        case "role":
+                        case "user":
                         case "string":
                             parameters.push(
                                 new StringParameter(p, inputParam?.value)
diff --git a/src/Parameter.ts b/src/Parameter.ts
index d9fbf86..0e6ca56 100644
--- a/src/Parameter.ts
+++ b/src/Parameter.ts
@@ -29,9 +29,6 @@ export class Parameter {
         }
         return;
     }
-    static processString(a: string, type: ParameterType): ParameterResolvable {
-        return a;
-    }
 }
 export class DefaultParameter extends Parameter {
     constructor() {