diff --git a/td/telegram/files/FileGenerateManager.cpp b/td/telegram/files/FileGenerateManager.cpp
index b00fc3574..b61f5362b 100644
--- a/td/telegram/files/FileGenerateManager.cpp
+++ b/td/telegram/files/FileGenerateManager.cpp
@@ -143,7 +143,7 @@ class MapDownloadGenerateActor : public FileGenerateActor {
 
   Result<tl_object_ptr<telegram_api::inputWebFileGeoPointLocation>> parse_conversion() {
     auto parts = full_split(Slice(conversion_), '#');
-    if (parts.size() != 8 || !parts[0].empty() || parts[1] != "map") {
+    if (parts.size() != 9 || !parts[0].empty() || parts[1] != "map" || !parts[8].empty()) {
       return Status::Error("Wrong conversion");
     }
 
diff --git a/tdutils/td/utils/misc.h b/tdutils/td/utils/misc.h
index b3b869ae3..22f049ab4 100644
--- a/tdutils/td/utils/misc.h
+++ b/tdutils/td/utils/misc.h
@@ -34,13 +34,17 @@ std::pair<T, T> split(T s, char delimiter = ' ') {
 
 template <class T>
 vector<T> full_split(T s, char delimiter = ' ') {
-  T next;
   vector<T> result;
-  while (!s.empty()) {
-    std::tie(next, s) = split(s, delimiter);
-    result.push_back(next);
+  while (true) {
+    auto delimiter_pos = s.find(delimiter);
+    if (delimiter_pos == string::npos) {
+      result.push_back(std::move(s));
+      return result;
+    } else {
+      result.push_back(s.substr(0, delimiter_pos));
+      s = s.substr(delimiter_pos + 1);
+    }
   }
-  return result;
 }
 
 string implode(vector<string> v, char delimiter = ' ');
diff --git a/tdutils/test/misc.cpp b/tdutils/test/misc.cpp
index 1ac2174e2..8f687adce 100644
--- a/tdutils/test/misc.cpp
+++ b/tdutils/test/misc.cpp
@@ -450,3 +450,43 @@ TEST(Misc, IPAddress_get_ipv4) {
   test_get_ipv4(0x04030201);
   test_get_ipv4(0xFFFFFFFF);
 }
+
+static void test_split(Slice str, std::pair<Slice, Slice> expected) {
+  ASSERT_EQ(expected, td::split(str));
+}
+
+TEST(Misc, split) {
+  test_split("", {"", ""});
+  test_split(" ", {"", ""});
+  test_split("abcdef", {"abcdef", ""});
+  test_split("abc def", {"abc", "def"});
+  test_split("a bcdef", {"a", "bcdef"});
+  test_split(" abcdef", {"", "abcdef"});
+  test_split("abcdef ", {"abcdef", ""});
+  test_split("ab cd ef", {"ab", "cd ef"});
+  test_split("ab cdef ", {"ab", "cdef "});
+  test_split(" abcd ef", {"", "abcd ef"});
+  test_split(" abcdef ", {"", "abcdef "});
+}
+
+
+static void test_full_split(Slice str, vector<Slice> expected) {
+  ASSERT_EQ(expected, td::full_split(str));
+}
+
+TEST(Misc, full_split) {
+  test_full_split("", {""});
+  test_full_split(" ", {"", ""});
+  test_full_split("  ", {"", "", ""});
+  test_full_split("abcdef", {"abcdef"});
+  test_full_split("abc def", {"abc", "def"});
+  test_full_split("a bcdef", {"a", "bcdef"});
+  test_full_split(" abcdef", {"", "abcdef"});
+  test_full_split("abcdef ", {"abcdef", ""});
+  test_full_split("ab cd ef", {"ab", "cd", "ef"});
+  test_full_split("ab cdef ", {"ab", "cdef", ""});
+  test_full_split(" abcd ef", {"", "abcd", "ef"});
+  test_full_split(" abcdef ", {"", "abcdef", ""});
+  test_full_split(" ab cd ef ", {"", "ab", "cd", "ef", ""});
+  test_full_split("  ab  cd  ef  ", {"", "", "ab", "", "cd", "", "ef", "", ""});
+}