diff --git a/src/arch/x86/intregfile.hh b/src/arch/x86/intregfile.hh
index da631d444e..f7b03f0f0d 100644
--- a/src/arch/x86/intregfile.hh
+++ b/src/arch/x86/intregfile.hh
@@ -88,8 +88,9 @@
 #ifndef __ARCH_X86_INTREGFILE_HH__
 #define __ARCH_X86_INTREGFILE_HH__
 
-#include "arch/x86/x86_traits.hh"
+#include "arch/x86/intregs.hh"
 #include "arch/x86/types.hh"
+#include "arch/x86/x86_traits.hh"
 
 #include <string>
 
@@ -102,7 +103,7 @@ namespace X86ISA
     //This function translates integer register file indices into names
     std::string getIntRegName(RegIndex);
 
-    const int NumIntArchRegs = 16;
+    const int NumIntArchRegs = NUM_INTREGS;
     const int NumIntRegs = NumIntArchRegs + NumMicroIntRegs;
 
     class IntRegFile
diff --git a/src/arch/x86/intregs.hh b/src/arch/x86/intregs.hh
index 3fe25bd5f0..ed801cc48f 100644
--- a/src/arch/x86/intregs.hh
+++ b/src/arch/x86/intregs.hh
@@ -77,7 +77,8 @@ namespace X86ISA
         INTREG_R12W,
         INTREG_R13W,
         INTREG_R14W,
-        INTREG_R15W
+        INTREG_R15W,
+        NUM_INTREGS
     };
 };