diff --git a/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCCCG/PBiCCCG.H b/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCCCG/PBiCCCG.H
index 7ebf51669..1e7c85e41 100644
--- a/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCCCG/PBiCCCG.H
+++ b/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCCCG/PBiCCCG.H
@@ -26,7 +26,7 @@ Class
 
 Description
     Preconditioned bi-conjugate gradient solver for asymmetric lduMatrices
-    using a run-time selectable preconditiioner.
+    using a run-time selectable preconditioner.
 
 SourceFiles
     PBiCCCG.C
diff --git a/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCICG/PBiCICG.H b/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCICG/PBiCICG.H
index 6c848f418..8f4dd950d 100644
--- a/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCICG/PBiCICG.H
+++ b/src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCICG/PBiCICG.H
@@ -26,7 +26,7 @@ Class
 
 Description
     Preconditioned bi-conjugate gradient solver for asymmetric lduMatrices
-    using a run-time selectable preconditiioner.
+    using a run-time selectable preconditioner.
 
 SourceFiles
     PBiCICG.C
diff --git a/src/OpenFOAM/matrices/LduMatrix/Solvers/PCICG/PCICG.H b/src/OpenFOAM/matrices/LduMatrix/Solvers/PCICG/PCICG.H
index 56764df93..7a6d01ff5 100644
--- a/src/OpenFOAM/matrices/LduMatrix/Solvers/PCICG/PCICG.H
+++ b/src/OpenFOAM/matrices/LduMatrix/Solvers/PCICG/PCICG.H
@@ -26,7 +26,7 @@ Class
 
 Description
     Preconditioned conjugate gradient solver for symmetric lduMatrices
-    using a run-time selectable preconditiioner.
+    using a run-time selectable preconditioner.
 
 SourceFiles
     PCICG.C
diff --git a/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCG/PBiCG.H b/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCG/PBiCG.H
index fda7d7d31..6e404e9e8 100644
--- a/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCG/PBiCG.H
+++ b/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCG/PBiCG.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ Class
 
 Description
     Preconditioned bi-conjugate gradient solver for asymmetric lduMatrices
-    using a run-time selectable preconditiioner.
+    using a run-time selectable preconditioner.
 
 SourceFiles
     PBiCG.C
diff --git a/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H b/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H
index 95dee23a5..44d9045a4 100644
--- a/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H
+++ b/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H
@@ -26,7 +26,7 @@ Class
 
 Description
     Preconditioned bi-conjugate gradient stabilized solver for asymmetric
-    lduMatrices using a run-time selectable preconditiioner.
+    lduMatrices using a run-time selectable preconditioner.
 
     References:
     \verbatim