diff --git a/tdutils/td/utils/Slice.h b/tdutils/td/utils/Slice.h
index 5b923959..f8f3f7b6 100644
--- a/tdutils/td/utils/Slice.h
+++ b/tdutils/td/utils/Slice.h
@@ -26,11 +26,7 @@ inline MutableSlice::MutableSlice(unsigned char *s, size_t len) : s_(reinterpret
   CHECK(s_ != nullptr);
 }
 
-inline MutableSlice::MutableSlice(string &s) : MutableSlice() {
-  if (!s.empty()) {
-    s_ = &s[0];
-    len_ = s.size();
-  }
+inline MutableSlice::MutableSlice(string &s) : s_(&s[0]), len_(s.size()) {
 }
 
 template <class T>