diff --git a/modules/mol/alg/src/lddt.cc b/modules/mol/alg/src/lddt.cc
index 2142989048973aaec76da73470c078e69e212c16..3a320ce22843667079c1f03ffa80586dfeadb5ae 100644
--- a/modules/mol/alg/src/lddt.cc
+++ b/modules/mol/alg/src/lddt.cc
@@ -109,8 +109,8 @@ int main (int argc, char **argv)
 {
   // sets some default values for parameters
   String version = "1.2";
-  Real bond_tolerance = 15.0;
-  Real angle_tolerance = 15.0;
+  Real bond_tolerance = 12.0;
+  Real angle_tolerance = 12.0;
   Real radius=15.0; 
   int sequence_separation = 0;