diff --git a/Userland/Libraries/LibRegex/RegexByteCode.h b/Userland/Libraries/LibRegex/RegexByteCode.h
index d8021adf20..150b67c0aa 100644
--- a/Userland/Libraries/LibRegex/RegexByteCode.h
+++ b/Userland/Libraries/LibRegex/RegexByteCode.h
@@ -334,26 +334,26 @@ public:
     {
 
         // FORKJUMP _ALT
-        // REGEXP ALT1
+        // REGEXP ALT2
         // JUMP  _END
         // LABEL _ALT
-        // REGEXP ALT2
+        // REGEXP ALT1
         // LABEL _END
 
         ByteCode byte_code;
 
         empend(static_cast<ByteCodeValueType>(OpCodeId::ForkJump));
-        empend(left.size() + 2); // Jump to the _ALT label
+        empend(right.size() + 2); // Jump to the _ALT label
 
-        for (auto& op : left)
+        for (auto& op : right)
             append(move(op));
 
         empend(static_cast<ByteCodeValueType>(OpCodeId::Jump));
-        empend(right.size()); // Jump to the _END label
+        empend(left.size()); // Jump to the _END label
 
         // LABEL _ALT = bytecode.size() + 2
 
-        for (auto& op : right)
+        for (auto& op : left)
             append(move(op));
 
         // LABEL _END = alterantive_bytecode.size