diff --git a/cache.h b/cache.h
index ca0085717d..2b5f614184 100644
--- a/cache.h
+++ b/cache.h
@@ -1028,6 +1028,10 @@ enum fsync_component {
 			      FSYNC_COMPONENT_COMMIT_GRAPH | \
 			      FSYNC_COMPONENT_INDEX)
 
+#ifndef FSYNC_COMPONENTS_PLATFORM_DEFAULT
+#define FSYNC_COMPONENTS_PLATFORM_DEFAULT FSYNC_COMPONENTS_DEFAULT
+#endif
+
 /*
  * A bitmask indicating which components of the repo should be fsynced.
  */
diff --git a/compat/mingw.h b/compat/mingw.h
index 6074a3d3ce..afe30868c0 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -332,6 +332,9 @@ int mingw_getpagesize(void);
 int win32_fsync_no_flush(int fd);
 #define fsync_no_flush win32_fsync_no_flush
 
+#define FSYNC_COMPONENTS_PLATFORM_DEFAULT (FSYNC_COMPONENTS_DEFAULT | FSYNC_COMPONENT_LOOSE_OBJECT)
+#define FSYNC_METHOD_DEFAULT (FSYNC_METHOD_BATCH)
+
 struct rlimit {
 	unsigned int rlim_cur;
 };
diff --git a/config.c b/config.c
index 6d4caac476..8e31b49ea9 100644
--- a/config.c
+++ b/config.c
@@ -1341,7 +1341,7 @@ static const struct fsync_component_name {
 
 static enum fsync_component parse_fsync_components(const char *var, const char *string)
 {
-	enum fsync_component current = FSYNC_COMPONENTS_DEFAULT;
+	enum fsync_component current = FSYNC_COMPONENTS_PLATFORM_DEFAULT;
 	enum fsync_component positive = 0, negative = 0;
 
 	while (string) {
diff --git a/git-compat-util.h b/git-compat-util.h
index 0892e209a2..fffe42ce7c 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -1257,11 +1257,13 @@ __attribute__((format (printf, 3, 4))) NORETURN
 void BUG_fl(const char *file, int line, const char *fmt, ...);
 #define BUG(...) BUG_fl(__FILE__, __LINE__, __VA_ARGS__)
 
+#ifndef FSYNC_METHOD_DEFAULT
 #ifdef __APPLE__
 #define FSYNC_METHOD_DEFAULT FSYNC_METHOD_WRITEOUT_ONLY
 #else
 #define FSYNC_METHOD_DEFAULT FSYNC_METHOD_FSYNC
 #endif
+#endif
 
 enum fsync_action {
 	FSYNC_WRITEOUT_ONLY,