diff --git a/MagickCore/thread-private.h b/MagickCore/thread-private.h
index 7496eeb..3ab40c9 100644
--- a/MagickCore/thread-private.h
+++ b/MagickCore/thread-private.h
@@ -28,11 +28,11 @@
/*
Single threaded unless workload justifies the threading overhead.
*/
-#define MinimumWorkLoad() (16*GetMagickResourceLimit(ThreadResource))
+#define WorkloadThreshold() (16*GetMagickResourceLimit(ThreadResource))
#define dynamic_number_threads(columns,rows,expression) \
- if (((((columns) > MinimumWorkLoad()) || \
- ((rows) > MinimumWorkLoad()))) && ((MagickSizeType) \
- ((columns)*(rows)) > (MinimumWorkLoad()*MinimumWorkLoad())) && \
+ if (((((columns) > WorkloadThreshold()) || \
+ ((rows) > WorkloadThreshold()))) && ((MagickSizeType) \
+ ((columns)*(rows)) > (WorkloadThreshold()*WorkloadThreshold())) && \
(expression)) \
num_threads(GetMagickResourceLimit(ThreadResource))