diff --git a/src/commands/CmdTimesheet.cpp b/src/commands/CmdTimesheet.cpp
index fa0e49b73..3dcd9e0a5 100644
--- a/src/commands/CmdTimesheet.cpp
+++ b/src/commands/CmdTimesheet.cpp
@@ -81,7 +81,7 @@ int CmdTimesheet::execute (std::string& output)
   int quantity = 1;
   std::vector <std::string> words = context.cli2.getWords ();
   if (words.size () == 1)
-    quantity = std::stoi (words[0]);
+    quantity = strtol (words[0].c_str (), NULL, 10);;
 
   std::stringstream out;
   for (int week = 0; week < quantity; ++week)