diff --git a/etc/infiniband.conf b/etc/infiniband.conf
index 7668e1c81..58dc3e989 100644
--- a/etc/infiniband.conf
+++ b/etc/infiniband.conf
@@ -16,7 +16,7 @@ nodes = {
             max_wrs = 8192,
             cq_size = 2048,
 
-            vectorize = 64,
+            vectorize = 1,
 
             poll_mode = "BUSY",
             buffer_subtraction = 128,
@@ -29,7 +29,7 @@ nodes = {
             max_wrs = 8192,
             cq_size = 256,
 
-            vectorize = 64,
+            vectorize = 1,
 
             send_inline = 1,
             max_inline_data = 60,