diff --git a/dexlib2/src/main/java/org/jf/dexlib2/builder/MutableMethodImplementation.java b/dexlib2/src/main/java/org/jf/dexlib2/builder/MutableMethodImplementation.java
index 3e4925ea..e011cc16 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/builder/MutableMethodImplementation.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/builder/MutableMethodImplementation.java
@@ -657,6 +657,9 @@ public class MutableMethodImplementation implements MethodImplementation {
             case Format3rms:
                 setInstruction(location, newBuilderInstruction3rms((Instruction3rms)instruction));
                 return;
+            case Format45cc:
+                setInstruction(location, newBuilderInstruction45cc((Instruction45cc) instruction));
+                return;
             case Format51l:
                 setInstruction(location, newBuilderInstruction51l((Instruction51l)instruction));
                 return;
@@ -948,6 +951,21 @@ public class MutableMethodImplementation implements MethodImplementation {
                 instruction.getVtableIndex());
     }
 
+    @Nonnull
+    private BuilderInstruction45cc newBuilderInstruction45cc(@Nonnull Instruction45cc instruction) {
+        return new BuilderInstruction45cc(
+                instruction.getOpcode(),
+                instruction.getRegisterCount(),
+                instruction.getRegisterC(),
+                instruction.getRegisterD(),
+                instruction.getRegisterE(),
+                instruction.getRegisterF(),
+                instruction.getRegisterG(),
+                instruction.getReference(),
+                instruction.getReference2()
+        );
+    }
+
     @Nonnull
     private BuilderInstruction51l newBuilderInstruction51l(@Nonnull Instruction51l instruction) {
         return new BuilderInstruction51l(
diff --git a/dexlib2/src/main/java/org/jf/dexlib2/rewriter/InstructionRewriter.java b/dexlib2/src/main/java/org/jf/dexlib2/rewriter/InstructionRewriter.java
index 92d94bec..6e09be91 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/rewriter/InstructionRewriter.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/rewriter/InstructionRewriter.java
@@ -65,6 +65,8 @@ public class InstructionRewriter implements Rewriter<Instruction> {
                     return new RewrittenInstruction35c((Instruction35c)instruction);
                 case Format3rc:
                     return new RewrittenInstruction3rc((Instruction3rc)instruction);
+                case Format45cc:
+                    return new RewrittenInstruction45cc((Instruction45cc) instruction);
                 default:
                     throw new IllegalArgumentException();
             }
@@ -202,4 +204,57 @@ public class InstructionRewriter implements Rewriter<Instruction> {
             return instruction.getRegisterCount();
         }
     }
+
+    protected class RewrittenInstruction45cc extends BaseRewrittenReferenceInstruction<Instruction45cc>
+            implements Instruction45cc {
+        public RewrittenInstruction45cc(@Nonnull Instruction45cc instruction) {
+            super(instruction);
+        }
+
+        @Nonnull public Reference getReference2() {
+            switch (instruction.getReferenceType2()) {
+                case ReferenceType.TYPE:
+                    return RewriterUtils.rewriteTypeReference(rewriters.getTypeRewriter(),
+                            (TypeReference)instruction.getReference2());
+                case ReferenceType.FIELD:
+                    return rewriters.getFieldReferenceRewriter().rewrite((FieldReference)instruction.getReference2());
+                case ReferenceType.METHOD:
+                    return rewriters.getMethodReferenceRewriter().rewrite((MethodReference)instruction.getReference2());
+                case ReferenceType.STRING:
+                    return instruction.getReference2();
+                case ReferenceType.METHOD_PROTO:
+                    return instruction.getReference2();
+                default:
+                    throw new IllegalArgumentException();
+            }
+        }
+
+        public int getReferenceType2() {
+            return instruction.getReferenceType2();
+        }
+
+        public int getRegisterC() {
+            return instruction.getRegisterC();
+        }
+
+        public int getRegisterE() {
+            return instruction.getRegisterE();
+        }
+
+        public int getRegisterG() {
+            return instruction.getRegisterG();
+        }
+
+        public int getRegisterCount() {
+            return instruction.getRegisterCount();
+        }
+
+        public int getRegisterD() {
+            return instruction.getRegisterD();
+        }
+
+        public int getRegisterF() {
+            return instruction.getRegisterF();
+        }
+    }
 }
diff --git a/dexlib2/src/main/java/org/jf/dexlib2/writer/pool/ClassPool.java b/dexlib2/src/main/java/org/jf/dexlib2/writer/pool/ClassPool.java
index 08a60946..338b2b49 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/writer/pool/ClassPool.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/writer/pool/ClassPool.java
@@ -138,7 +138,7 @@ public class ClassPool extends BasePool<String, PoolClassDef> implements ClassSe
                     internReference(refInst.getReference(), refInst.getReferenceType());
                 }
                 if (instruction instanceof DualReferenceInstruction) {
-                    DualReferenceInstruction dualRefInst = (DualReferenceInstruction)instruction;
+                    DualReferenceInstruction dualRefInst = (DualReferenceInstruction) instruction;
                     internReference(dualRefInst.getReference2(), dualRefInst.getReferenceType2());
                 }
             }