diff --git a/stdlib/distutils/ccompiler.pyi b/stdlib/distutils/ccompiler.pyi
index e7277aa3f..cc097728f 100644
--- a/stdlib/distutils/ccompiler.pyi
+++ b/stdlib/distutils/ccompiler.pyi
@@ -56,7 +56,7 @@ class CCompiler:
         self,
         sources: list[str],
         output_dir: str | None = None,
-        macros: _Macro | None = None,
+        macros: list[_Macro] | None = None,
         include_dirs: list[str] | None = None,
         debug: bool = ...,
         extra_preargs: list[str] | None = None,
diff --git a/stubs/setuptools/setuptools/_distutils/ccompiler.pyi b/stubs/setuptools/setuptools/_distutils/ccompiler.pyi
index 4182c9044..3b7d4cdd3 100644
--- a/stubs/setuptools/setuptools/_distutils/ccompiler.pyi
+++ b/stubs/setuptools/setuptools/_distutils/ccompiler.pyi
@@ -65,7 +65,7 @@ class CCompiler:
         self,
         sources: list[str],
         output_dir: str | None = ...,
-        macros: _Macro | None = ...,
+        macros: list[_Macro] | None = ...,
         include_dirs: list[str] | None = ...,
         debug: bool = ...,
         extra_preargs: list[str] | None = ...,