diff --git a/Modules/_sre.c b/Modules/_sre.c
index 0357764..640f388 100644
--- a/Modules/_sre.c
+++ b/Modules/_sre.c
@@ -353,7 +353,8 @@
     return 0;
 }
 
-void lastmark_restore(SRE_STATE *state, int lastmark)
+static void
+lastmark_restore(SRE_STATE *state, int lastmark)
 {
     if (state->lastmark > lastmark) {
         memset(
diff --git a/Python/ceval.c b/Python/ceval.c
index e654efd..b19121c 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3197,7 +3197,7 @@
 
 #define EXT_POP(STACK_POINTER) (*--(STACK_POINTER))
 
-void
+static void
 err_args(PyObject *func, int flags, int nargs)
 {
 	if (flags & METH_NOARGS)