diff --git a/src/foam/matrices/lduMatrix/solvers/AMG/AMGAgglomerations/GAMGAgglomeration/GAMGAgglomerateLduAddressing.C b/src/foam/matrices/lduMatrix/solvers/AMG/AMGAgglomerations/GAMGAgglomeration/GAMGAgglomerateLduAddressing.C
index 74d7e2648..8d3e89473 100644
--- a/src/foam/matrices/lduMatrix/solvers/AMG/AMGAgglomerations/GAMGAgglomeration/GAMGAgglomerateLduAddressing.C
+++ b/src/foam/matrices/lduMatrix/solvers/AMG/AMGAgglomerations/GAMGAgglomeration/GAMGAgglomerateLduAddressing.C
@@ -227,6 +227,11 @@ void Foam::GAMGAgglomeration::agglomerateLduAddressing
         }
     }
 
+    if (Pstream::parRun())
+    {
+        Pstream::waitRequests();
+    }
+
     // Store coefficients to avoid tangled communications
     // HJ, 1/Apr/2009
     FieldField<Field, label> fineInterfaceAddr(fineInterfaces.size());
@@ -253,11 +258,6 @@ void Foam::GAMGAgglomeration::agglomerateLduAddressing
         }
     }
 
-    if (Pstream::parRun())
-    {
-        Pstream::waitRequests();
-    }
-
     // Add the coarse level
 
     // Set the coarse ldu addressing onto the list