diff --git a/src/pkg/root.zig b/src/pkg/root.zig
index feb0a28..2a80308 100644
--- a/src/pkg/root.zig
+++ b/src/pkg/root.zig
@@ -32,6 +32,18 @@ fn getAbsoluteEnv(name: [:0]const u8) ?[]const u8 {
   return value;
 }
 
+fn getLegacyAntDirIfExists(allocator: std.mem.Allocator) !?[]const u8 {
+  const home = try getHomeDir(allocator);
+  defer allocator.free(home);
+
+  const dir = try std.fmt.allocPrint(allocator, "{s}/.ant", .{home});
+  std.fs.cwd().access(dir, .{}) catch {
+    allocator.free(dir);
+    return null;
+  };
+  return dir;
+}
+
 pub const PkgError = enum(c_int) {
   ok = 0,
   out_of_memory = -1,
@@ -249,6 +261,10 @@ pub const PkgContext = struct {
 
   fn getDefaultCacheDir(allocator: std.mem.Allocator) ![]const u8 {
     if (builtin.os.tag != .windows) {
+      if (try getLegacyAntDirIfExists(allocator)) |dir| {
+        defer allocator.free(dir);
+        return std.fmt.allocPrint(allocator, "{s}/pkg", .{dir});
+      }
       if (getAbsoluteEnv("XDG_CACHE_HOME")) |base| {
         return std.fmt.allocPrint(allocator, "{s}/ant/pkg", .{base});
       }
@@ -2958,6 +2974,10 @@ export fn pkg_exec_temp(
 
 fn getGlobalDir(allocator: std.mem.Allocator) ![]const u8 {
   if (builtin.os.tag != .windows) {
+    if (try getLegacyAntDirIfExists(allocator)) |dir| {
+      defer allocator.free(dir);
+      return std.fmt.allocPrint(allocator, "{s}/pkg/global", .{dir});
+    }
     if (getAbsoluteEnv("XDG_DATA_HOME")) |base| {
       return std.fmt.allocPrint(allocator, "{s}/ant/pkg/global", .{base});
     }
@@ -2975,6 +2995,10 @@ fn getGlobalBinDir(allocator: std.mem.Allocator) ![]const u8 {
   const home = try getHomeDir(allocator);
   defer allocator.free(home);
   if (builtin.os.tag != .windows) {
+    if (try getLegacyAntDirIfExists(allocator)) |dir| {
+      defer allocator.free(dir);
+      return std.fmt.allocPrint(allocator, "{s}/bin", .{dir});
+    }
     return std.fmt.allocPrint(allocator, "{s}/.local/bin", .{home});
   }
   return std.fmt.allocPrint(allocator, "{s}/.ant/bin", .{home});
diff --git a/src/utils.c b/src/utils.c
index 0571a57..92287dd 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -58,6 +58,19 @@ static int ant_join_app_path(
   return (written < 0 || (size_t)written >= out_size) ? -1 : 0;
 }
 
+static int ant_legacy_home_path(char *out, size_t out_size, const char *suffix) {
+  const char *home = ant_home_dir();
+  if (!home) return -1;
+  return ant_join_app_path(out, out_size, home, ".ant", suffix);
+}
+
+static bool ant_legacy_home_exists(void) {
+  char path[4096];
+  if (ant_legacy_home_path(path, sizeof(path), NULL) != 0) return false;
+  struct stat st;
+  return stat(path, &st) == 0;
+}
+
 static int ant_xdg_path(
   char *out, size_t out_size,
   const char *env_name,
@@ -69,6 +82,10 @@ static int ant_xdg_path(
   if (!home) return -1;
   return ant_join_app_path(out, out_size, home, ".ant", suffix);
 #else
+  if (ant_legacy_home_exists()) {
+    return ant_legacy_home_path(out, out_size, suffix);
+  }
+
   const char *base = ant_absolute_env(env_name);
   if (base) return ant_join_app_path(out, out_size, base, "ant", suffix);
 
@@ -126,6 +143,9 @@ int ant_user_bin_path(char *out, size_t out_size) {
 #ifdef _WIN32
   int written = snprintf(out, out_size, "%s/.ant/bin", home);
 #else
+  if (ant_legacy_home_exists()) {
+    return ant_legacy_home_path(out, out_size, "bin");
+  }
   int written = snprintf(out, out_size, "%s/.local/bin", home);
 #endif
   return (written < 0 || (size_t)written >= out_size) ? -1 : 0;