1 files changed, 1 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h
index 027d96c..af753a6 100644
--- a/src/util.h
+++ b/src/util.h
@@ -6,6 +6,7 @@
 #define __util__
 
 static const double FL_DIS = 1e-7;
+static const double DB_DIS = 1e-6;
 static const double NaN = 0.0f/0.0f;
 static const int forced_length = 20;