diff --git a/asm/src/main/java/dev/openrs2/asm/ClassNodeRemapper.kt b/asm/src/main/java/dev/openrs2/asm/ClassNodeRemapper.kt
index 896c01e7e1..095106c167 100644
--- a/asm/src/main/java/dev/openrs2/asm/ClassNodeRemapper.kt
+++ b/asm/src/main/java/dev/openrs2/asm/ClassNodeRemapper.kt
@@ -45,20 +45,9 @@ fun ClassNode.remap(remapper: Remapper) {
     }
 }
 
-private fun Remapper.mapFrameType(type: Any?): Any? {
-    return if (type is String) {
-        mapType(type)
-    } else {
-        type
-    }
-}
-
 private fun AbstractInsnNode.remap(remapper: Remapper) {
     when (this) {
-        is FrameNode -> {
-            local = local?.map(remapper::mapFrameType)
-            stack = stack?.map(remapper::mapFrameType)
-        }
+        is FrameNode -> throw UnsupportedOperationException("SKIP_FRAMES and COMPUTE_FRAMES must be used")
         is FieldInsnNode -> {
             val originalOwner = owner
             owner = remapper.mapType(originalOwner)
diff --git a/asm/src/main/java/dev/openrs2/asm/MethodNodeUtils.kt b/asm/src/main/java/dev/openrs2/asm/MethodNodeUtils.kt
index 6fad19e13e..bb6556b1de 100644
--- a/asm/src/main/java/dev/openrs2/asm/MethodNodeUtils.kt
+++ b/asm/src/main/java/dev/openrs2/asm/MethodNodeUtils.kt
@@ -96,15 +96,7 @@ fun MethodNode.removeArgument(argIndex: Int) {
         when (insn) {
             is VarInsnNode -> insn.`var` = remap(insn.`var`, argType, localIndex)
             is IincInsnNode -> insn.`var` = remap(insn.`var`, argType, localIndex)
-            is FrameNode -> {
-                if (insn.type != Opcodes.F_NEW) {
-                    throw UnsupportedOperationException("Only F_NEW frames are supported")
-                }
-
-                for (i in 0 until argType.size) {
-                    insn.local.removeAt(localIndex)
-                }
-            }
+            is FrameNode -> throw UnsupportedOperationException("SKIP_FRAMES and COMPUTE_FRAMES must be used")
         }
     }
 }