diff --git a/src/app/modman.cpp b/src/app/modman.cpp
index 0a6f601f..4498011b 100644
--- a/src/app/modman.cpp
+++ b/src/app/modman.cpp
@@ -279,7 +279,10 @@ void CModManager::LoadModData(Mod& mod)
                     auto major = StrUtils::ToString(line->GetParam("major")->AsInt());
                     auto minor = StrUtils::ToString(line->GetParam("minor")->AsInt());
                     auto patch = StrUtils::ToString(line->GetParam("patch")->AsInt());
-                    data.version = boost::algorithm::join(std::vector<std::string>{ major, minor, patch }, ".");
+
+                    std::ostringstream stream;
+                    stream << major << "." << minor << "." << patch;
+                    data.version = stream.str();
                 }
             }
 
diff --git a/src/app/pausemanager.cpp b/src/app/pausemanager.cpp
index 18d7e52a..8d6a26a9 100644
--- a/src/app/pausemanager.cpp
+++ b/src/app/pausemanager.cpp
@@ -26,7 +26,7 @@
 #include "level/robotmain.h"
 
 #include <algorithm>
-#include <boost/algorithm/string/join.hpp>
+#include <numeric>
 
 struct ActivePause
 {
@@ -45,13 +45,19 @@ struct ActivePause
 static std::string GetPauseName(PauseType type)
 {
     std::vector<std::string> x;
+
     if ((type & PAUSE_ENGINE) != 0) x.push_back("engine");
     if ((type & PAUSE_HIDE_SHORTCUTS) != 0) x.push_back("hide_shortcuts");
     if ((type & PAUSE_PHOTO) != 0) x.push_back("photo");
     if ((type & PAUSE_OBJECT_UPDATES) != 0) x.push_back("object_updates");
     if ((type & PAUSE_MUTE_SOUND) != 0) x.push_back("mute_sound");
     if ((type & PAUSE_CAMERA) != 0) x.push_back("camera");
-    return boost::algorithm::join(x, "|");
+
+    return std::accumulate(x.cbegin(), x.cend(), std::string(),
+        [](auto& acc, auto& value)
+        {
+            return acc.empty() ? value : acc + "|" + value;
+        });
 }
 
 CPauseManager::CPauseManager()