diff --git a/libfuse/lib/fuse_loop.cpp b/libfuse/lib/fuse_loop.cpp
index c80bbaa4..3936d3cf 100644
--- a/libfuse/lib/fuse_loop.cpp
+++ b/libfuse/lib/fuse_loop.cpp
@@ -227,7 +227,7 @@ _calculate_thread_counts(int *read_thread_count_,
 {
   constexpr int DEFAULT_QUEUE_DEPTH = 2;
   
-  if((*read_thread_count_ == -1) && (*process_thread_count_ == -1))
+  if((*read_thread_count_ == 0) && (*process_thread_count_ == -1))
     {
       int nproc;