diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java
index ff4cb6d1b..0135fb93d 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java
@@ -214,6 +214,7 @@ import com.jpexs.decompiler.flash.abc.types.traits.TraitFunction;
 import com.jpexs.decompiler.flash.abc.types.traits.TraitMethodGetterSetter;
 import com.jpexs.decompiler.flash.abc.types.traits.TraitSlotConst;
 import com.jpexs.decompiler.flash.abc.types.traits.Traits;
+import com.jpexs.decompiler.flash.action.Deobfuscation;
 import com.jpexs.decompiler.flash.configuration.Configuration;
 import com.jpexs.decompiler.flash.dumpview.DumpInfo;
 import com.jpexs.decompiler.flash.ecma.EcmaScript;
@@ -1234,15 +1235,26 @@ public class AVM2Code implements Cloneable {
     }
     private int toSourceCount = 0;
 
-    public HashMap<Integer, String> getLocalRegNamesFromDebug(ABC abc) {
-        HashMap<Integer, String> localRegNames = new HashMap<>();
+    public Map<Integer, String> getLocalRegNamesFromDebug(ABC abc) {
+        Map<Integer, String> localRegNames = new HashMap<>();
+
         for (AVM2Instruction ins : code) {
             if (ins.definition instanceof DebugIns) {
                 if (ins.operands[0] == 1) {
-                    localRegNames.put(ins.operands[2] + 1, abc.constants.getString(ins.operands[1]));
+                    String v = abc.constants.getString(ins.operands[1]);
+                    if (!Deobfuscation.isValidName(v)) { //ignore obfuscated names
+                        return new HashMap<>();
+                    }
+                    //Same name already exists, it may be wrong names inserted by obfuscator
+                    if (localRegNames.values().contains(v)) {
+                        return new HashMap<>();
+                    }
+                    localRegNames.put(ins.operands[2] + 1, v);
                 }
             }
         }
+
+        //TODO: Make this immune to using existing multinames (?)
         return localRegNames;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodBody.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodBody.java
index c708fd97a..b613e2333 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodBody.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodBody.java
@@ -38,6 +38,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
@@ -151,9 +152,11 @@ public class MethodBody implements Cloneable {
             pos++;
         }
 
-        HashMap<Integer, String> debugRegNames = getCode().getLocalRegNamesFromDebug(abc);
-        for (int k : debugRegNames.keySet()) {
-            ret.put(k, debugRegNames.get(k));
+        if (Configuration.getLocalNamesFromDebugInfo.get()) {
+            Map<Integer, String> debugRegNames = getCode().getLocalRegNamesFromDebug(abc);
+            for (int k : debugRegNames.keySet()) {
+                ret.put(k, debugRegNames.get(k));
+            }
         }
         return ret;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodInfo.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodInfo.java
index 3a6811177..1224ebf7a 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodInfo.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/types/MethodInfo.java
@@ -268,8 +268,8 @@ public class MethodInfo {
     }
 
     public GraphTextWriter getParamStr(GraphTextWriter writer, AVM2ConstantPool constants, MethodBody body, ABC abc, List<String> fullyQualifiedNames) {
-        HashMap<Integer, String> localRegNames = new HashMap<>();
-        if (body != null) {
+        Map<Integer, String> localRegNames = new HashMap<>();
+        if (body != null && Configuration.getLocalNamesFromDebugInfo.get()) {            
             localRegNames = body.getCode().getLocalRegNamesFromDebug(abc);
         }
         Map<String,String> pdata;
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
index 89ceca74d..89e1c376b 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
@@ -355,6 +355,10 @@ public class Configuration {
     @ConfigurationDefaultString("debugConsole")
     public static final ConfigurationItem<String> lastDebuggerReplaceFunction = null;
     
+    @ConfigurationDefaultBoolean(true)
+    @ConfigurationCategory("script")
+    public static final ConfigurationItem<Boolean> getLocalNamesFromDebugInfo = null;    
+    
     private enum OSId {
 
         WINDOWS, OSX, UNIX
diff --git a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
index 05782fdce..b0eb07cfd 100644
--- a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
+++ b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
@@ -284,3 +284,6 @@ config.description.randomDebuggerPackage = This renames Debugger package to rand
 
 config.name.lastDebuggerReplaceFunction = (Internal) Last selected trace replacement
 config.description.lastDebuggerReplaceFunction = Function name which was last selected in replace trace function with debugger
+
+config.name.getLocalNamesFromDebugInfo = AS3: Get local register names from debug info
+config.description.getLocalNamesFromDebugInfo = If debug info present, renames local registers from _loc_x_ to real names. This can be turned off because some obfuscators use invalid register names there.
\ No newline at end of file