diff --git a/CMakeLists.txt b/CMakeLists.txt
index e64adad3b..9ad74d8f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -182,7 +182,7 @@ elseif(UNIX)
 	source_group("POSIX-specific code" FILES ${OS_SRC})
 elseif(WII)
 	list(APPEND VFS_SRC ${CMAKE_SOURCE_DIR}/src/util/vfs/vfs-file.c)
-	add_definitions(-DCOLOR_16_BIT -DCOLOR_5_6_5)
+	add_definitions(-DCOLOR_16_BIT -DCOLOR_5_6_5 -DUSE_VFS_FILE)
 	file(GLOB OS_SRC ${CMAKE_SOURCE_DIR}/src/platform/wii/wii-*.c)
 	list(APPEND OS_LIB fat ogc)
 	source_group("Wii-specific code" FILES ${OS_SRC})
diff --git a/src/platform/wii/main.c b/src/platform/wii/main.c
index 0e660d26a..88184049e 100644
--- a/src/platform/wii/main.c
+++ b/src/platform/wii/main.c
@@ -247,7 +247,7 @@ static void GBAWiiFrame(void) {
 }
 
 bool GBAWiiLoadGame(const char* path) {
-	rom = VFileFOpen(path, "rb");
+	rom = VFileOpen(path, O_RDONLY);
 
 	if (!rom) {
 		return false;
@@ -256,7 +256,7 @@ bool GBAWiiLoadGame(const char* path) {
 		return false;
 	}
 
-	save = VFileFOpen("test.sav", "w+b");
+	save = VFileOpen("test.sav", O_RDWR | O_CREAT);
 
 	GBALoadROM(&gba, rom, save, path);