diff --git a/jsonschema/schema.go b/jsonschema/schema.go
index 19b1728..4e78eb2 100644
--- a/jsonschema/schema.go
+++ b/jsonschema/schema.go
@@ -293,7 +293,7 @@ func Ptr[T any](x T) *T { return &x }
 // It stops when f returns false.
 func (s *Schema) every(f func(*Schema) bool) bool {
 	return s == nil ||
-		f(s) && s.everyChild(f)
+		f(s) && s.everyChild(func(s *Schema) bool { return s.every(f) })
 }
 
 // everyChild reports whether f is true for every immediate child schema of s.
diff --git a/jsonschema/schema_test.go b/jsonschema/schema_test.go
index 614cca1..117db7b 100644
--- a/jsonschema/schema_test.go
+++ b/jsonschema/schema_test.go
@@ -111,3 +111,18 @@ func TestUnmarshalErrors(t *testing.T) {
 
 	}
 }
+
+func TestEvery(t *testing.T) {
+	// Schema.every should visit all descendants of a schema, not just the immediate ones.
+	s := &Schema{
+		Items: &Schema{
+			Items: &Schema{},
+		},
+	}
+	want := 3
+	got := 0
+	s.every(func(*Schema) bool { got++; return true })
+	if got != want {
+		t.Errorf("got %d, want %d", got, want)
+	}
+}