diff --git a/SimpleGame/src/Source/TilePattern.cpp b/SimpleGame/src/Source/TilePattern.cpp
index 2b773cb..7fb352d 100644
--- a/SimpleGame/src/Source/TilePattern.cpp
+++ b/SimpleGame/src/Source/TilePattern.cpp
@@ -5,6 +5,7 @@
 #include <cstdio>
 #include <utility>
 #include <vector>
+#include <algorithm>
 
 NotePlaceEnum getNotePlacement(int index, int notePitch, int prevPitch,
                                NotePlaceEnum prevPlacement) {