diff --git a/bscript/script.go b/bscript/script.go
index ac01150a..3ca7ea6d 100644
--- a/bscript/script.go
+++ b/bscript/script.go
@@ -218,10 +218,12 @@ func (s *Script) ToASM() (string, error) {
 			}
 		} else {
 			if data && len(p) <= 4 {
+				b := make([]byte, 0)
+				b = append(b, p...)
 				for i := 0; i < 4-len(p); i++ {
-					p = append(p, 0)
+					b = append(b, 0)
 				}
-				asmScript.WriteString(fmt.Sprintf("%d", binary.LittleEndian.Uint32(p)))
+				asmScript.WriteString(fmt.Sprintf("%d", binary.LittleEndian.Uint32(b)))
 			} else {
 				asmScript.WriteString(hex.EncodeToString(p))
 			}
diff --git a/bscript/script_test.go b/bscript/script_test.go
index 1b41bcca..7e5e65e4 100644
--- a/bscript/script_test.go
+++ b/bscript/script_test.go
@@ -214,3 +214,19 @@ func TestRunScriptExample2(t *testing.T) {
 		t.Errorf("\nExpected %q\ngot      %q", expected, asm)
 	}
 }
+
+func TestRunScriptExample3(t *testing.T) {
+	script, _ := hex.DecodeString("006a223139694733575459537362796f7333754a373333794b347a45696f69314665734e55010042666166383166326364346433663239383061623162363564616166656231656631333561626339643534386461633466366134656361623230653033656365362d300274780134")
+	s := bscript.Script(script)
+
+	asm, err := s.ToASM()
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+
+	expected := "0 OP_RETURN 3139694733575459537362796f7333754a373333794b347a45696f69314665734e55 0 666166383166326364346433663239383061623162363564616166656231656631333561626339643534386461633466366134656361623230653033656365362d30 30836 52"
+	if asm != expected {
+		t.Errorf("\nExpected %q\ngot      %q", expected, asm)
+	}
+}