diff --git a/src/mg/mglib02a.cpp b/src/mg/mglib02a.cpp
index 3b25d9e85..e0d22668b 100755
--- a/src/mg/mglib02a.cpp
+++ b/src/mg/mglib02a.cpp
@@ -932,6 +932,13 @@ void reset_clifogiac(TRectype& rec, const TRectype& oldrec, bool closed)
 		    rec.add(CLIFOGIAC_DOTIN, oldrec.get_real(CLIFOGIAC_DOTIN));
   			rec.add(CLIFOGIAC_DOTTM, oldrec.get_real(CLIFOGIAC_DOTTM));
 	  	}
+			else
+			{
+				rec.zero(CLIFOGIAC_DOTOD);
+				rec.zero(CLIFOGIAC_DOTIN);
+				rec.zero(CLIFOGIAC_DOTTM);
+			}
+
     }
     else
     {