diff --git a/vfs.py b/vfs.py
index 98080f0..86886a2 100755
--- a/vfs.py
+++ b/vfs.py
@@ -39,4 +39,4 @@
 # print("normalized EPI = {}".format(normalizedEPI))
 
 VFS = speedup * ALPHA * (1-2/(1+math.sqrt(1+BETA/(speedup*normalizedEPI))))
-print("{:.6f}".format(VFS))
+print("{:.4f}".format(VFS))