diff --git a/Chess/nim.cfg b/Chess/nim.cfg
index 0ed6f5d..f2b04e9 100644
--- a/Chess/nim.cfg
+++ b/Chess/nim.cfg
@@ -4,4 +4,3 @@
 --passL:"-flto"
 --passC:"-flto -march=native -mtune=native"
 --mm:atomicArc
---deepCopy
diff --git a/Chess/nimfish/nimfishpkg/eval.nim b/Chess/nimfish/nimfishpkg/eval.nim
index 54e066c..c38e94b 100644
--- a/Chess/nimfish/nimfishpkg/eval.nim
+++ b/Chess/nimfish/nimfishpkg/eval.nim
@@ -202,7 +202,7 @@ func highestEval*: Score {.inline.} = Score(25_000)
 func mateScore*: Score {.inline.} = lowestEval() + 1
 
 
-proc getGamePhase(board: Chessboard): int =
+func getGamePhase(board: Chessboard): int {.inline.} =
     ## Computes the game phase according to
     ## how many pieces are left on the board
     result = 0