diff --git a/src/PerfectHash/PerfectHashTableCreate.c b/src/PerfectHash/PerfectHashTableCreate.c
index 7280e291..61a6bdf9 100644
--- a/src/PerfectHash/PerfectHashTableCreate.c
+++ b/src/PerfectHash/PerfectHashTableCreate.c
@@ -16,10 +16,10 @@ Module Name:
 #include "stdafx.h"
 
 //
-// Cap the maximum key set size we're willing to process to 10 million.
+// Cap the maximum key set size we're willing to process to 2 billion.
 //
 
-#define MAXIMUM_NUMBER_OF_KEYS 10000000
+#define MAXIMUM_NUMBER_OF_KEYS 2000000000
 
 //
 // Define the threshold for how many attempts need to be made at finding a