diff --git a/src/cmd/internal/objfile/disasm.go b/src/cmd/internal/objfile/disasm.go
index 18cc4e6fff..c486016d6c 100644
--- a/src/cmd/internal/objfile/disasm.go
+++ b/src/cmd/internal/objfile/disasm.go
@@ -304,7 +304,7 @@ func disasm_amd64(code []byte, pc uint64, lookup lookupFunc, _ binary.ByteOrder)
 }
 
 func disasm_x86(code []byte, pc uint64, lookup lookupFunc, arch int) (string, int) {
-	inst, err := x86asm.Decode(code, 64)
+	inst, err := x86asm.Decode(code, arch)
 	var text string
 	size := inst.Len
 	if err != nil || size == 0 || inst.Op == 0 {
diff --git a/src/cmd/objdump/objdump_test.go b/src/cmd/objdump/objdump_test.go
index f0771cdde9..a2ca329609 100644
--- a/src/cmd/objdump/objdump_test.go
+++ b/src/cmd/objdump/objdump_test.go
@@ -148,6 +148,13 @@ func testDisasm(t *testing.T, printCode bool, flags ...string) {
 			ok = false
 		}
 	}
+	if goarch == "386" {
+		if strings.Contains(text, "(IP)") {
+			t.Errorf("disassembly contains PC-Relative addressing on 386")
+			ok = false
+		}
+	}
+
 	if !ok {
 		t.Logf("full disassembly:\n%s", text)
 	}
@@ -234,6 +241,12 @@ func TestDisasmGoobj(t *testing.T) {
 			ok = false
 		}
 	}
+	if runtime.GOARCH == "386" {
+		if strings.Contains(text, "(IP)") {
+			t.Errorf("disassembly contains PC-Relative addressing on 386")
+			ok = false
+		}
+	}
 	if !ok {
 		t.Logf("full disassembly:\n%s", text)
 	}