diff --git a/test/stage1/behavior.zig b/test/stage1/behavior.zig
index d4dc641ad6cc06a3d7b3403fbb02e0509e027766..a420fd6886c7e2f7ea7a6fb69675cef0431fef7d 100644
--- a/test/stage1/behavior.zig
+++ b/test/stage1/behavior.zig
@@ -40,7 +40,7 @@ comptime {
     _ = @import("behavior/bugs/3384.zig");
     _ = @import("behavior/bugs/3586.zig");
     _ = @import("behavior/bugs/3742.zig");
-    _ = @import("behavior/bugs/4328_5305.zig");
+    _ = @import("behavior/bugs/4328.zig");
     _ = @import("behavior/bugs/4560.zig");
     _ = @import("behavior/bugs/4769_a.zig");
     _ = @import("behavior/bugs/4769_b.zig");
diff --git a/test/stage1/behavior/bugs/4328.zig b/test/stage1/behavior/bugs/4328.zig
new file mode 100644
index 0000000000000000000000000000000000000000..0196af1748d972798b65c745d6c02df5e063a83a
--- /dev/null
+++ b/test/stage1/behavior/bugs/4328.zig
@@ -0,0 +1,71 @@
+const expectEqual = @import("std").testing.expectEqual;
+
+const FILE = extern struct {
+    dummy_field: u8,
+};
+
+extern fn printf([*c]const u8, ...) c_int;
+extern fn fputs([*c]const u8, noalias [*c]FILE) c_int;
+extern fn ftell([*c]FILE) c_long;
+extern fn fopen([*c]const u8, [*c]const u8) [*c]FILE;
+
+const S = extern struct {
+    state: c_short,
+
+    extern fn s_do_thing([*c]S, b: c_int) c_short;
+};
+
+test "Extern function calls in @TypeOf" {
+    const Test = struct {
+        fn test_fn_1(a: var, b: var) @TypeOf(printf("%d %s\n", a, b)) {
+            return 0;
+        }
+
+        fn test_fn_2(a: var) @TypeOf((S{ .state = 0 }).s_do_thing(a)) {
+            return 1;
+        }
+
+        fn doTheTest() void {
+            expectEqual(c_int, @TypeOf(test_fn_1(0, 42)));
+            expectEqual(c_short, @TypeOf(test_fn_2(0)));
+        }
+    };
+
+    Test.doTheTest();
+    comptime Test.doTheTest();
+}
+
+test "Peer resolution of extern function calls in @TypeOf" {
+    const Test = struct {
+        fn test_fn() @TypeOf(ftell(null), fputs(null, null)) {
+            return 0;
+        }
+
+        fn doTheTest() void {
+            expectEqual(c_long, @TypeOf(test_fn()));
+        }
+    };
+
+    Test.doTheTest();
+    comptime Test.doTheTest();
+}
+
+test "Extern function calls, dereferences and field access in @TypeOf" {
+    const Test = struct {
+        fn test_fn_1(a: c_long) @TypeOf(fopen("test", "r").*) {
+            return .{ .dummy_field = 0 };
+        }
+
+        fn test_fn_2(a: var) @TypeOf(fopen("test", "r").*.dummy_field) {
+            return 255;
+        }
+
+        fn doTheTest() void {
+            expectEqual(FILE, @TypeOf(test_fn_1(0)));
+            expectEqual(u8, @TypeOf(test_fn_2(0)));
+        }
+    };
+
+    Test.doTheTest();
+    comptime Test.doTheTest();
+}
\ No newline at end of file
diff --git a/test/stage1/behavior/bugs/4328_5305.zig b/test/stage1/behavior/bugs/4328_5305.zig
deleted file mode 100644
index 0196af1748d972798b65c745d6c02df5e063a83a..0000000000000000000000000000000000000000
--- a/test/stage1/behavior/bugs/4328_5305.zig
+++ /dev/null
@@ -1,71 +0,0 @@
-const expectEqual = @import("std").testing.expectEqual;
-
-const FILE = extern struct {
-    dummy_field: u8,
-};
-
-extern fn printf([*c]const u8, ...) c_int;
-extern fn fputs([*c]const u8, noalias [*c]FILE) c_int;
-extern fn ftell([*c]FILE) c_long;
-extern fn fopen([*c]const u8, [*c]const u8) [*c]FILE;
-
-const S = extern struct {
-    state: c_short,
-
-    extern fn s_do_thing([*c]S, b: c_int) c_short;
-};
-
-test "Extern function calls in @TypeOf" {
-    const Test = struct {
-        fn test_fn_1(a: var, b: var) @TypeOf(printf("%d %s\n", a, b)) {
-            return 0;
-        }
-
-        fn test_fn_2(a: var) @TypeOf((S{ .state = 0 }).s_do_thing(a)) {
-            return 1;
-        }
-
-        fn doTheTest() void {
-            expectEqual(c_int, @TypeOf(test_fn_1(0, 42)));
-            expectEqual(c_short, @TypeOf(test_fn_2(0)));
-        }
-    };
-
-    Test.doTheTest();
-    comptime Test.doTheTest();
-}
-
-test "Peer resolution of extern function calls in @TypeOf" {
-    const Test = struct {
-        fn test_fn() @TypeOf(ftell(null), fputs(null, null)) {
-            return 0;
-        }
-
-        fn doTheTest() void {
-            expectEqual(c_long, @TypeOf(test_fn()));
-        }
-    };
-
-    Test.doTheTest();
-    comptime Test.doTheTest();
-}
-
-test "Extern function calls, dereferences and field access in @TypeOf" {
-    const Test = struct {
-        fn test_fn_1(a: c_long) @TypeOf(fopen("test", "r").*) {
-            return .{ .dummy_field = 0 };
-        }
-
-        fn test_fn_2(a: var) @TypeOf(fopen("test", "r").*.dummy_field) {
-            return 255;
-        }
-
-        fn doTheTest() void {
-            expectEqual(FILE, @TypeOf(test_fn_1(0)));
-            expectEqual(u8, @TypeOf(test_fn_2(0)));
-        }
-    };
-
-    Test.doTheTest();
-    comptime Test.doTheTest();
-}
\ No newline at end of file