diff --git a/tdutils/td/utils/Slice-decl.h b/tdutils/td/utils/Slice-decl.h
index 6bc7d4e8..38ddb041 100644
--- a/tdutils/td/utils/Slice-decl.h
+++ b/tdutils/td/utils/Slice-decl.h
@@ -189,8 +189,7 @@ class CSlice : public Slice {
 
   template <size_t N>
   constexpr CSlice &operator=(const char (&a)[N]) {
-    s_ = a;
-    len_ = N - 1;
+    this->Slice::operator=(a);
     return *this;
   }