diff --git a/include/core.h b/include/core.h
index b261dd6..c09b127 100644
--- a/include/core.h
+++ b/include/core.h
@@ -1049,10 +1049,11 @@ private:
    bool OutOfBombTimer (void);
    void SelectLeaderEachTeam (int team);
 
-   const Vector &CheckToss (const Vector &start, Vector end);
-   const Vector &CheckThrow (const Vector &start, Vector end);
+   Vector CheckToss (const Vector &start, Vector end);
+   Vector CheckThrow (const Vector &start, Vector end);
+   Vector CheckBombAudible (void);
+
    const Vector &GetAimPosition (void);
-   const Vector &CheckBombAudible (void);
 
    float GetZOffset (float distance);
 
diff --git a/source/basecode.cpp b/source/basecode.cpp
index 4bfcdff..8486b3a 100644
--- a/source/basecode.cpp
+++ b/source/basecode.cpp
@@ -5658,7 +5658,7 @@ void Bot::DebugMsg (const char *format, ...)
       AddLogEntry (false, LL_DEFAULT, "%s: %s", STRING (pev->netname), buffer);
 }
 
-const Vector &Bot::CheckToss (const Vector &start, Vector end)
+Vector Bot::CheckToss (const Vector &start, Vector end)
 {
    // this function returns the velocity at which an object should looped from start to land near end.
    // returns null vector if toss is not feasible.
@@ -5713,7 +5713,7 @@ const Vector &Bot::CheckToss (const Vector &start, Vector end)
    return nadeVelocity * 0.777;
 }
 
-const Vector &Bot::CheckThrow (const Vector &start, Vector end)
+Vector Bot::CheckThrow (const Vector &start, Vector end)
 {
    // this function returns the velocity vector at which an object should be thrown from start to hit end.
    // returns null vector if throw is not feasible.
@@ -5752,7 +5752,7 @@ const Vector &Bot::CheckThrow (const Vector &start, Vector end)
    return nadeVelocity * 0.7793;
 }
 
-const Vector &Bot::CheckBombAudible (void)
+Vector Bot::CheckBombAudible (void)
 {
    // this function checks if bomb is can be heard by the bot, calculations done by manual testing.