diff --git a/source/games/blood/src/qav.cpp b/source/games/blood/src/qav.cpp
index ae472db18..fb67dbec5 100644
--- a/source/games/blood/src/qav.cpp
+++ b/source/games/blood/src/qav.cpp
@@ -95,7 +95,7 @@ static void qavInitTileFinderMap()
     });
 }
 
-QAVPrevTileFinder qavGetInterpType(const FString& type)
+static QAVPrevTileFinder qavGetInterpType(const FString& type)
 {
     if (!qavPrevTileFinders.CountUsed()) qavInitTileFinderMap();
     return *qavPrevTileFinders.CheckKey(type);