diff --git a/parse.js b/parse.js
index 8f304e6..5bc4d69 100644
--- a/parse.js
+++ b/parse.js
@@ -23,9 +23,12 @@ export default function parse(data) {
     let match = functions[command];
     if (match != undefined) {
       if (
-        !(match.options["requires_arg1"] && arg1 != undefined) &&
-        !(match.options["requires_arg2"] && arg2 != undefined)
+        (match.options["requires_arg1"] && arg1 == undefined) ||
+        (match.options["requires_arg2"] && arg2 == undefined)
       ) {
+        errors.push(`error parsing line ${lineNumber}, invalid number of args`);
+      }
+      else {
         parsed.push(
           {
             command: command,
@@ -34,9 +37,6 @@ export default function parse(data) {
           }
         );
       }
-      else {
-        errors.push(`error parsing line ${lineNumber}, invalid number of args`);
-      }
     }
   }
   return {