diff --git a/src/ipc.c b/src/ipc.c
index d06b0e3a3d..97d71429bf 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -255,14 +255,14 @@ static int ipc_read_shm(void) /* {{{ */
   ipcinfo_shm_t *pshm;
   unsigned int shm_segments = 0;
   size64_t shm_bytes = 0;
-  int n;
+  int i, n;
 
   ipcinfo_shm = (ipcinfo_shm_t *)ipc_get_info(
       0, GET_IPCINFO_SHM_ALL, IPCINFO_SHM_VERSION, sizeof(ipcinfo_shm_t), &n);
   if (ipcinfo_shm == NULL)
     return -1;
 
-  for (int i = 0, pshm = ipcinfo_shm; i < n; i++, pshm++) {
+  for (i = 0, pshm = ipcinfo_shm; i < n; i++, pshm++) {
     shm_segments++;
     shm_bytes += pshm->shm_segsz;
   }