diff --git a/src/networking.cpp b/src/networking.cpp
index 36eb033aa..574a8bc6c 100644
--- a/src/networking.cpp
+++ b/src/networking.cpp
@@ -2370,7 +2370,7 @@ void parseClientCommandBuffer(client *c) {
 
         /* Prefetch outside the lock for better perf */
         if (g_pserver->prefetch_enabled && cqueriesStart < c->vecqueuedcmd.size() &&
-            (g_pserver->m_pstorageFactory || aeLockContested(cserver.cthreads/2)) && !GlobalLocksAcquired()) {
+            (g_pserver->m_pstorageFactory || aeLockContested(cserver.cthreads/2) || cserver.cthreads == 1) && !GlobalLocksAcquired()) {
             auto &query = c->vecqueuedcmd.back();
             if (query.argc > 0 && query.argc == query.argcMax) {
                 c->db->prefetchKeysAsync(c, query);