diff --git a/src/core/iomgr/pollset_set_windows.c b/src/core/iomgr/pollset_set_windows.c
index 3b8eca28e61f75e09fb26ab73d37b04e083beb7f..d17b65b13b1641eb75be87472f58af2056011534 100644
--- a/src/core/iomgr/pollset_set_windows.c
+++ b/src/core/iomgr/pollset_set_windows.c
@@ -37,7 +37,7 @@
 
 #include "src/core/iomgr/pollset_set_windows.h"
 
-grpc_pollset_set* grpc_pollset_set_create(pollset_set) { return NULL; }
+grpc_pollset_set* grpc_pollset_set_create(void) { return NULL; }
 
 void grpc_pollset_set_destroy(grpc_pollset_set* pollset_set) {}