diff --git a/python/postal/text/pynormalize.c b/python/postal/text/pynormalize.c
index 61efe9e7..46b959f9 100644
--- a/python/postal/text/pynormalize.c
+++ b/python/postal/text/pynormalize.c
@@ -271,7 +271,7 @@ static struct PyModuleDef module_def = {
 #define INITERROR return NULL
 
 PyObject *
-PyInit_normalize(void)
+PyInit_normalize(void) {
 #else
 #define INITERROR return
 
diff --git a/python/postal/text/pytokenize.c b/python/postal/text/pytokenize.c
index ae366b08..7986bae3 100644
--- a/python/postal/text/pytokenize.c
+++ b/python/postal/text/pytokenize.c
@@ -134,7 +134,7 @@ static struct PyModuleDef module_def = {
 #define INITERROR return NULL
 
 PyObject *
-PyInit_tokenize(void)
+PyInit_tokenize(void) {
 #else
 #define INITERROR return