diff --git a/platform/platform.cpp b/platform/platform.cpp
index d8fd6f1030..74c5401ece 100644
--- a/platform/platform.cpp
+++ b/platform/platform.cpp
@@ -6,15 +6,12 @@
 #include "../base/logging.hpp"
 
 
-string Platform::ReadPathForFile(string const & file, char const * searchScope) const
+string Platform::ReadPathForFile(string const & file, string const & searchScope) const
 {
-  ASSERT(searchScope, ());
-
-  string const strScope(searchScope);
   string fullPath;
-  for (size_t i = 0; i < strScope.size(); ++i)
+  for (size_t i = 0; i < searchScope.size(); ++i)
   {
-    switch (strScope[i])
+    switch (searchScope[i])
     {
     case 'w': fullPath = m_writableDir + file; break;
     case 'r': fullPath = m_resourcesDir + file; break;
diff --git a/platform/platform.hpp b/platform/platform.hpp
index ec7399edc1..6a3572fc21 100644
--- a/platform/platform.hpp
+++ b/platform/platform.hpp
@@ -45,7 +45,7 @@ protected:
 
   /// Internal function to get full path for input file.
   /// Uses m_writeableDir and m_resourcesDir.
-  string ReadPathForFile(string const & file, char const * searchScope) const;
+  string ReadPathForFile(string const & file, string const & searchScope) const;
 
   /// Hash some unique string into uniform format.
   static string HashUniqueID(string const & s);
@@ -79,7 +79,7 @@ public:
   /// @param[in] file name or full path which we want to read, don't forget to free memory or wrap it to ReaderPtr
   /// @param[in] searchScope looks for file in dirs in given order: [w]ritable, [r]esources, by [f]ull path
   /// @TODO add [e]xternal resource scope for Android (obb support)
-  ModelReader * GetReader(string const & file, char const * searchScope = "wrf") const;
+  ModelReader * GetReader(string const & file, string const & searchScope = "wrf") const;
 
   /// @name File operations
   //@{
diff --git a/platform/platform_android.cpp b/platform/platform_android.cpp
index b038dd5e65..362f0c79e7 100644
--- a/platform/platform_android.cpp
+++ b/platform/platform_android.cpp
@@ -76,18 +76,17 @@ public:
 
 }
 
-ModelReader * Platform::GetReader(string const & file, char const * searchScope) const
+ModelReader * Platform::GetReader(string const & file, string const & searchScope) const
 {
   // @TODO now we handle only two specific cases needed to release guides ads
-  string const strScope(searchScope);
-  if (strScope == "w")
+  if (searchScope == "w")
   {
     string const path = m_writableDir + file;
     if (IsFileExistsByFullPath(path))
       return new FileReader(path, READER_CHUNK_LOG_SIZE, READER_CHUNK_LOG_COUNT);
     MYTHROW(FileAbsentException, ("File not found", file));
   }
-  else if (strScope == "r")
+  else if (searchScope == "r")
   {
     return new ZipFileReader(m_resourcesDir, "assets/" + file);
   }
diff --git a/platform/platform_ios.mm b/platform/platform_ios.mm
index 696e05653f..3f20526c6c 100644
--- a/platform/platform_ios.mm
+++ b/platform/platform_ios.mm
@@ -72,7 +72,7 @@ bool Platform::GetFileSizeByName(string const & fileName, uint64_t & size) const
   }
 }
 
-ModelReader * Platform::GetReader(string const & file, char const * searchScope) const
+ModelReader * Platform::GetReader(string const & file, string const & searchScope) const
 {
   return new FileReader(ReadPathForFile(file, searchScope),
                         READER_CHUNK_LOG_SIZE, READER_CHUNK_LOG_COUNT);
diff --git a/platform/platform_qt.cpp b/platform/platform_qt.cpp
index e01b725cf8..d15fa664e3 100644
--- a/platform/platform_qt.cpp
+++ b/platform/platform_qt.cpp
@@ -12,7 +12,7 @@
 #include <QtCore/QFileInfo>
 
 
-ModelReader * Platform::GetReader(string const & file, char const * searchScope) const
+ModelReader * Platform::GetReader(string const & file, string const & searchScope) const
 {
   return new FileReader(ReadPathForFile(file, searchScope),
                         READER_CHUNK_LOG_SIZE, READER_CHUNK_LOG_COUNT);