diff --git a/stdlib/@tests/stubtest_allowlists/py315.txt b/stdlib/@tests/stubtest_allowlists/py315.txt
index fcd88edaf791..cd4466f40ad7 100644
--- a/stdlib/@tests/stubtest_allowlists/py315.txt
+++ b/stdlib/@tests/stubtest_allowlists/py315.txt
@@ -22,7 +22,6 @@ dataclasses._MISSING_TYPE
 dataclasses.field
 importlib._abc.Loader.load_module
 importlib._bootstrap_external.NamespacePath
-importlib.abc.InspectLoader.source_to_code
 importlib.abc.MetaPathFinder.discover
 importlib.abc.PathEntryFinder.discover
 importlib.resources._common.package_to_anchor
diff --git a/stdlib/importlib/abc.pyi b/stdlib/importlib/abc.pyi
index 945b8d2080d1..489710887248 100644
--- a/stdlib/importlib/abc.pyi
+++ b/stdlib/importlib/abc.pyi
@@ -41,10 +41,19 @@ class InspectLoader(Loader):
     @abstractmethod
     def get_source(self, fullname: str) -> str | None: ...
     def exec_module(self, module: types.ModuleType) -> None: ...
-    @staticmethod
-    def source_to_code(
-        data: ReadableBuffer | str | _ast.Module | _ast.Expression | _ast.Interactive, path: bytes | StrPath = "<string>"
-    ) -> types.CodeType: ...
+
+    if sys.version_info >= (3, 15):
+        @staticmethod
+        def source_to_code(
+            data: ReadableBuffer | str | _ast.Module | _ast.Expression | _ast.Interactive,
+            path: bytes | StrPath = "<string>",
+            fullname: str | None = None,
+        ) -> types.CodeType: ...
+    else:
+        @staticmethod
+        def source_to_code(
+            data: ReadableBuffer | str | _ast.Module | _ast.Expression | _ast.Interactive, path: bytes | StrPath = "<string>"
+        ) -> types.CodeType: ...
 
 class ExecutionLoader(InspectLoader):
     @abstractmethod