diff --git a/src/arch/arm/isa.cc b/src/arch/arm/isa.cc
index ab6e3f7273..83df61fb40 100644
--- a/src/arch/arm/isa.cc
+++ b/src/arch/arm/isa.cc
@@ -567,8 +567,6 @@ ISA::readMiscReg(RegIndex idx)
             l2ctlr.numCPUs = tc->getSystemPtr()->threads.size() - 1;
             return l2ctlr;
         }
-      case MISCREG_DBGDSCRint:
-        return readMiscRegNoEffect(MISCREG_DBGDSCRint);
       case MISCREG_ISR:
       case MISCREG_ISR_EL1:
         {