diff --git a/pimd/pim_oil.c b/pimd/pim_oil.c
index 2c8b056..1aaece3 100644
--- a/pimd/pim_oil.c
+++ b/pimd/pim_oil.c
@@ -69,7 +69,7 @@
 
   c_oil = XCALLOC(MTYPE_PIM_CHANNEL_OIL, sizeof(*c_oil));
   if (!c_oil) {
-    zlog_err("PIM XCALLOC(%d) failure", sizeof(*c_oil));
+    zlog_err("PIM XCALLOC(%zu) failure", sizeof(*c_oil));
     return 0;
   }
 
@@ -91,7 +91,7 @@
 
   c_oil = channel_oil_new(group_addr, source_addr, input_vif_index);
   if (!c_oil) {
-    zlog_warn("PIM XCALLOC(%d) failure", sizeof(*c_oil));
+    zlog_warn("PIM XCALLOC(%zu) failure", sizeof(*c_oil));
     return 0;
   }