diff --git a/src/arch/arm/isa/formats/misc.isa b/src/arch/arm/isa/formats/misc.isa
index e966fe423..33a8ae4fe 100644
--- a/src/arch/arm/isa/formats/misc.isa
+++ b/src/arch/arm/isa/formats/misc.isa
@@ -110,6 +110,9 @@ def format McrMrc15() {{
           case MISCREG_CP15DMB:
             return new WarnUnimplemented(
                     isRead ? "mrc cp15dmb" : "mcr cp15dmb", machInst);
+          case MISCREG_ICIALLUIS:
+            return new WarnUnimplemented(
+                    isRead ? "mrc icialluis" : "mcr icialluis", machInst);
           default:
             if (isRead) {
                 return new Mrc15(machInst, rt, (IntRegIndex)miscReg);
diff --git a/src/arch/arm/miscregs.hh b/src/arch/arm/miscregs.hh
index f6b8c2df9..e51f0ddd6 100644
--- a/src/arch/arm/miscregs.hh
+++ b/src/arch/arm/miscregs.hh
@@ -93,6 +93,7 @@ namespace ArmISA
         MISCREG_CP15DMB,
         MISCREG_CPACR,
         MISCREG_CLIDR,
+        MISCREG_ICIALLUIS,
         MISCREG_CP15_UNIMP_START,
         MISCREG_CTR = MISCREG_CP15_UNIMP_START,
         MISCREG_TCMTR,
@@ -130,7 +131,6 @@ namespace ArmISA
         MISCREG_DRACR,
         MISCREG_IRACR,
         MISCREG_RGNR,
-        MISCREG_ICIALLUIS,
         MISCREG_BPIALLIS,
         MISCREG_ICIALLU,
         MISCREG_ICIMVAU,
@@ -160,7 +160,7 @@ namespace ArmISA
         "fpsr", "fpsid", "fpscr", "fpexc",
         "sctlr", "dccisw", "dccimvac",
         "contextidr", "tpidrurw", "tpidruro", "tpidrprw",
-        "cp15isb", "cp15dsb", "cp15dmb", "cpacr", "clidr",
+        "cp15isb", "cp15dsb", "cp15dmb", "cpacr", "clidr", "icialluis",
         "ctr", "tcmtr", "mpuir", "mpidr", "midr",
         "id_pfr0", "id_pfr1", "id_dfr0", "id_afr0",
         "id_mmfr0", "id_mmfr1", "id_mmfr2", "id_mmfr3",
@@ -168,7 +168,7 @@ namespace ArmISA
         "ccsidr", "aidr", "csselr", "actlr",
         "dfsr", "ifsr", "adfsr", "aifsr", "dfar", "ifar",
         "drbar", "irbar", "drsr", "irsr", "dracr", "iracr",
-        "rgnr", "icialluis", "bpiallis", "iciallu", "icimvau",
+        "rgnr", "bpiallis", "iciallu", "icimvau",
         "bpiall", "bpimva", "dcimvac", "dcisw", "dccmvac", "mccsw",
         "dccmvau",
         "nop", "raz"