diff --git a/IF97.h b/IF97.h
index 864f3a0..8956322 100644
--- a/IF97.h
+++ b/IF97.h
@@ -3484,7 +3484,7 @@ namespace IF97
             { 12, -12,  0.261907376402688E-05},
             { 12,  -1, -0.291626417025961E+05},
             { 14, -12,  0.140660774926165E-04},
-            { 14,  -1,  0.783237062349385E+07}
+            { 14,  1,  0.783237062349385E+07}
         };
 
         static BackwardRegionResidualElement CoeffT4HS[] = {