diff --git a/sources/schemes.F90 b/sources/schemes.F90
index 54d6ecc..c916316 100644
--- a/sources/schemes.F90
+++ b/sources/schemes.F90
@@ -3582,8 +3582,8 @@ module schemes
         x2 = b2 / bp
         x3 = b3 / bp
       else
-        x2 = 1.0d+00 / sqrt(2.0d+00)
-        x3 = x2
+        x2 = 0.0d+00
+        x3 = 0.0d+00
       end if
 
       ca2 = b1**2
@@ -3764,9 +3764,9 @@ module schemes
       rm(:,:) =   0.0d+00
       rm(6,4) =   1.0d+00
       rm(9,4) =   1.0d+00
+      rm(1,5) =   1.0d+00
       rm(6,6) =   1.0d+00
       rm(9,6) = - 1.0d+00
-      rm(1,5) =   1.0d+00
 
       first = .false.
     end if
@@ -3843,8 +3843,8 @@ module schemes
         x2 = b2 / bp
         x3 = b3 / bp
       else
-        x2 = 1.0d+00 / sqrt(2.0d+00)
-        x3 = x2
+        x2 = 0.0d+00
+        x3 = 0.0d+00
       end if
 
       ca2 = b1**2