diff --git a/datadriven.go b/datadriven.go
index 7437cca..905cb1a 100644
--- a/datadriven.go
+++ b/datadriven.go
@@ -879,14 +879,14 @@ func parseArgVal(s string, dest reflect.Value) error {
 		dest.SetBool(b)
 
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		n, err := strconv.ParseInt(s, 0, int(t.Bits()))
+		n, err := strconv.ParseInt(s, 10, int(t.Bits()))
 		if err != nil {
 			return fmt.Errorf("parse %q as %s: %w", s, t, err)
 		}
 		dest.SetInt(n)
 
 	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		n, err := strconv.ParseUint(s, 0, int(t.Bits()))
+		n, err := strconv.ParseUint(s, 10, int(t.Bits()))
 		if err != nil {
 			return fmt.Errorf("parse %q as %s: %w", s, t, err)
 		}
diff --git a/datadriven_test.go b/datadriven_test.go
index 75eba8b..da1e344 100644
--- a/datadriven_test.go
+++ b/datadriven_test.go
@@ -326,7 +326,7 @@ func TestScanArgsSingle(t *testing.T) {
 ----
 []uint64{0x1, 0x2, 0x3, 0x4}
 
-[]int64 vals=(0xA, 0x10)
+[]int64 vals=(10, 000016)
 ----
 []int64{10, 16}