diff --git a/src/arch/x86/intregfile.hh b/src/arch/x86/intregfile.hh
index f7b03f0f0d..be6242a41b 100644
--- a/src/arch/x86/intregfile.hh
+++ b/src/arch/x86/intregfile.hh
@@ -104,7 +104,8 @@ namespace X86ISA
     std::string getIntRegName(RegIndex);
 
     const int NumIntArchRegs = NUM_INTREGS;
-    const int NumIntRegs = NumIntArchRegs + NumMicroIntRegs;
+    const int NumIntRegs =
+        NumIntArchRegs + NumMicroIntRegs + NumPseudoIntRegs;
 
     class IntRegFile
     {
diff --git a/src/arch/x86/x86_traits.hh b/src/arch/x86/x86_traits.hh
index e45d62f8f3..5794e70798 100644
--- a/src/arch/x86/x86_traits.hh
+++ b/src/arch/x86/x86_traits.hh
@@ -61,6 +61,7 @@
 namespace X86ISA
 {
     const int NumMicroIntRegs = 16;
+    const int NumPseudoIntRegs = 1;
 
     const int NumMMXRegs = 8;
     const int NumXMMRegs = 16;