diff --git a/src/cmd/compile/internal/rttype/rttype.go b/src/cmd/compile/internal/rttype/rttype.go
index b53ed8001f..b90e23dc5b 100644
--- a/src/cmd/compile/internal/rttype/rttype.go
+++ b/src/cmd/compile/internal/rttype/rttype.go
@@ -85,6 +85,9 @@ func Init() {
 	if got, want := int64(abi.TFlagOff(ptrSize)), Type.OffsetOf("TFlag"); got != want {
 		base.Fatalf("abi.TFlagOff() == %d, want %d", got, want)
 	}
+	if got, want := int64(abi.ITabTypeOff(ptrSize)), ITab.OffsetOf("Type"); got != want {
+		base.Fatalf("abi.ITabTypeOff() == %d, want %d", got, want)
+	}
 }
 
 // fromReflect translates from a host type to the equivalent target type.
diff --git a/src/cmd/link/internal/ld/decodesym.go b/src/cmd/link/internal/ld/decodesym.go
index b66f227549..aa40496492 100644
--- a/src/cmd/link/internal/ld/decodesym.go
+++ b/src/cmd/link/internal/ld/decodesym.go
@@ -304,5 +304,5 @@ func decodetypeGcprogShlib(ctxt *Link, data []byte) uint64 {
 // decodeItabType returns the itab.Type field from an itab.
 func decodeItabType(ldr *loader.Loader, arch *sys.Arch, symIdx loader.Sym) loader.Sym {
 	relocs := ldr.Relocs(symIdx)
-	return decodeRelocSym(ldr, symIdx, &relocs, int32(arch.PtrSize))
+	return decodeRelocSym(ldr, symIdx, &relocs, int32(abi.ITabTypeOff(arch.PtrSize)))
 }
diff --git a/src/internal/abi/compiletype.go b/src/internal/abi/compiletype.go
index 6f1a2d672c..f00a69c7cd 100644
--- a/src/internal/abi/compiletype.go
+++ b/src/internal/abi/compiletype.go
@@ -23,3 +23,6 @@ func UncommonSize() uint64 { return 4 + 2 + 2 + 4 + 4 }
 
 // TFlagOff returns the offset of Type.TFlag for a compilation target with a given ptrSize
 func TFlagOff(ptrSize int) int { return 2*ptrSize + 4 }
+
+// ITabTypeOff returns the offset of ITab.Type for a compilation target with a given ptrSize
+func ITabTypeOff(ptrSize int) int { return ptrSize }