diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/deobfuscation/AVM2DeobfuscatorSimpleOld.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/deobfuscation/AVM2DeobfuscatorSimpleOld.java
index f7ccf6dc1..517f833f1 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/deobfuscation/AVM2DeobfuscatorSimpleOld.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/deobfuscation/AVM2DeobfuscatorSimpleOld.java
@@ -58,6 +58,9 @@ import com.jpexs.decompiler.flash.abc.avm2.instructions.construction.ConstructIn
 import com.jpexs.decompiler.flash.abc.avm2.instructions.construction.NewArrayIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.construction.NewFunctionIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.construction.NewObjectIns;
+import com.jpexs.decompiler.flash.abc.avm2.instructions.debug.DebugFileIns;
+import com.jpexs.decompiler.flash.abc.avm2.instructions.debug.DebugIns;
+import com.jpexs.decompiler.flash.abc.avm2.instructions.debug.DebugLineIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.executing.CallIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.jumps.IfFalseIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.jumps.IfTrueIns;
@@ -65,6 +68,7 @@ import com.jpexs.decompiler.flash.abc.avm2.instructions.jumps.JumpIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.localregs.GetLocalTypeIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.localregs.SetLocalTypeIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.other.GetPropertyIns;
+import com.jpexs.decompiler.flash.abc.avm2.instructions.other.NopIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.stack.DupIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.stack.PopIns;
 import com.jpexs.decompiler.flash.abc.avm2.instructions.stack.PushByteIns;
@@ -377,7 +381,12 @@ public class AVM2DeobfuscatorSimpleOld extends AVM2DeobfuscatorZeroJumpsNullPush
                     || def instanceof CoerceOrConvertTypeIns
                     || def instanceof ConstructIns
                     || def instanceof CallIns
-                    || def instanceof TypeOfIns) {
+                    || def instanceof TypeOfIns
+                    || def instanceof DebugLineIns
+                    || def instanceof DebugFileIns
+                    || def instanceof DebugIns
+                    || def instanceof NopIns
+                    ) {
                 ok = true;
             }