diff --git a/float_test.go b/float_test.go
index d4e9ab6..3679818 100644
--- a/float_test.go
+++ b/float_test.go
@@ -58,9 +58,8 @@ func TestUnmarshalFloat(t *testing.T) {
 
 	var blank Float
 	err = json.Unmarshal(floatBlankJSON, &blank)
-	if err == nil {
-		panic("expected error")
-	}
+	maybePanic(err)
+	assertNullFloat(t, blank, "blank json")
 
 	var badType Float
 	err = json.Unmarshal(boolJSON, &badType)
diff --git a/int_test.go b/int_test.go
index 8b0e897..94e9e30 100644
--- a/int_test.go
+++ b/int_test.go
@@ -82,9 +82,8 @@ func testUnmarshalInt[N nullint](t *testing.T) {
 
 		var bi N
 		err = json.Unmarshal(floatBlankJSON, &bi)
-		if err == nil {
-			panic("err should not be nill")
-		}
+		maybePanic(err)
+		assertNullInt(t, bi, "blank json")
 
 		var null N
 		err = json.Unmarshal(nullJSON, &null)
diff --git a/internal/float.go b/internal/float.go
index 167fd62..a991fd6 100644
--- a/internal/float.go
+++ b/internal/float.go
@@ -22,6 +22,11 @@ func UnmarshalFloatJSON(data []byte, value *float64, valid *bool) error {
 		if err := json.Unmarshal(data, &str); err != nil {
 			return fmt.Errorf("null: couldn't unmarshal number string: %w", err)
 		}
+		if len(str) == 0 {
+			*value = 0
+			*valid = false
+			return nil
+		}
 		n, err := strconv.ParseFloat(str, 64)
 		if err != nil {
 			return fmt.Errorf("null: couldn't convert string to int: %w", err)
diff --git a/internal/int.go b/internal/int.go
index 5267b58..04c627a 100644
--- a/internal/int.go
+++ b/internal/int.go
@@ -25,6 +25,11 @@ func UnmarshalIntJSON[T Integer, U int64 | uint64](data []byte, value *T, valid
 		if err := json.Unmarshal(data, &str); err != nil {
 			return fmt.Errorf("null: couldn't unmarshal number string: %w", err)
 		}
+		if len(str) == 0 {
+			*value = 0
+			*valid = false
+			return nil
+		}
 		n, err := parse(str, 10, bits)
 		if err != nil {
 			return fmt.Errorf("null: couldn't convert string to int: %w", err)