diff --git a/src/OpenFOAM/matrices/LUscalarMatrix/LUscalarMatrix.C b/src/OpenFOAM/matrices/LUscalarMatrix/LUscalarMatrix.C
index ceb0661489..76cb4f9576 100644
--- a/src/OpenFOAM/matrices/LUscalarMatrix/LUscalarMatrix.C
+++ b/src/OpenFOAM/matrices/LUscalarMatrix/LUscalarMatrix.C
@@ -142,38 +142,43 @@ Foam::LUscalarMatrix::LUscalarMatrix
         convert(ldum, interfaceCoeffs, interfaces);
     }
 
-    if (debug && Pstream::master(comm_))
+    if (Pstream::master(comm_))
     {
         label nRows = n();
         label nColumns = m();
 
-        Pout<< "LUscalarMatrix : size:" << nRows << endl;
-        for (label rowI = 0; rowI < nRows; rowI++)
+        if (debug)
         {
-            const scalar* row = operator[](rowI);
-
-            Pout<< "cell:" << rowI << " diagCoeff:" << row[rowI] << endl;
-
-            Pout<< "    connects to upper cells :";
-            for (label columnI = rowI+1; columnI < nColumns; columnI++)
+            Pout<< "LUscalarMatrix : size:" << nRows << endl;
+            for (label rowI = 0; rowI < nRows; rowI++)
             {
-                if (mag(row[columnI]) > SMALL)
+                const scalar* row = operator[](rowI);
+
+                Pout<< "cell:" << rowI << " diagCoeff:" << row[rowI] << endl;
+
+                Pout<< "    connects to upper cells :";
+                for (label columnI = rowI+1; columnI < nColumns; columnI++)
                 {
-                    Pout<< ' ' << columnI << " (coeff:" << row[columnI] << ")";
+                    if (mag(row[columnI]) > SMALL)
+                    {
+                        Pout<< ' ' << columnI << " (coeff:" << row[columnI]
+                            << ")";
+                    }
                 }
-            }
-            Pout<< endl;
-            Pout<< "    connects to lower cells :";
-            for (label columnI = 0; columnI < rowI; columnI++)
-            {
-                if (mag(row[columnI]) > SMALL)
+                Pout<< endl;
+                Pout<< "    connects to lower cells :";
+                for (label columnI = 0; columnI < rowI; columnI++)
                 {
-                    Pout<< ' ' << columnI << " (coeff:" << row[columnI] << ")";
+                    if (mag(row[columnI]) > SMALL)
+                    {
+                        Pout<< ' ' << columnI << " (coeff:" << row[columnI]
+                            << ")";
+                    }
                 }
+                Pout<< endl;
             }
             Pout<< endl;
         }
-        Pout<< endl;
 
         pivotIndices_.setSize(n());
         LUDecompose(*this, pivotIndices_);