diff --git a/Modules/_multiprocessing/semaphore.c b/Modules/_multiprocessing/semaphore.c
index 036db2cd4c6c85..a4a2a866ccbfce 100644
--- a/Modules/_multiprocessing/semaphore.c
+++ b/Modules/_multiprocessing/semaphore.c
@@ -65,7 +65,7 @@ class _multiprocessing.SemLock "SemLockObject *" "&_PyMp_SemLockType"
 #define SEM_UNLINK(name) 0
 
 static int
-_GetSemaphoreValue(HANDLE handle, long *value)
+_GetSemaphoreValue(HANDLE handle, int *value)
 {
     long previous;