diff --git a/src/a64instruction.h b/src/a64instruction.h
index 463e75a..b2c75cf 100644
--- a/src/a64instruction.h
+++ b/src/a64instruction.h
@@ -1,6 +1,7 @@
 #ifndef __A64INSTRUCTION__
 #define __A64INSTRUCTION__
 #include "a64instruction_DPImmediate.h"
+#include "a64instruction_DPRegister.h"
 #include "a64instruction_Branch.h"
 #include "a64instruction_SingleTransfer.h"
 
@@ -20,6 +21,7 @@ typedef struct {
     a64inst_type type;
     union {
         a64inst_DPImmediateData DPImmediateData;
+        a64inst_DPRegisterData DPRegisterData;
         a64inst_BranchData BranchData;
         a64inst_SingleTransferData SingleTransferData;
     } data;