diff --git a/etc/settings.sh b/etc/settings.sh
index 43026c121..13d68d33b 100644
--- a/etc/settings.sh
+++ b/etc/settings.sh
@@ -244,6 +244,7 @@ MACPORTOPENMPI)
 	#	libDir=`mpicc-openmpi-$WM_MACPORT_MPI_VERSION --showme:libdirs`
 	libDir=/opt/local/lib/openmpi-$WM_MACPORT_MPI_VERSION
 
+	export FOAM_MPI_LIBBIN=$FOAM_LIBBIN/$FOAM_MPI
 	_foamAddLib     $libDir
 	unset libDir
 	;;
@@ -252,6 +253,7 @@ MACPORTMPICH)
     export FOAM_MPI=mpich-macports-$WM_MACPORT_MPI_VERSION
     export MPI_HOME=$WM_THIRD_PARTY_DIR/$FOAM_MPI
 
+    export FOAM_MPI_LIBBIN=$FOAM_LIBBIN/$FOAM_MPI
     libDir=/opt/local/lib/mpich-$WM_MACPORT_MPI_VERSION
 
     _foamAddLib     $libDir
diff --git a/wmake/rules/darwinIntel64Clang/c++ b/wmake/rules/darwinIntel64Clang/c++
index c278cdc5f..8a8884c20 100644
--- a/wmake/rules/darwinIntel64Clang/c++
+++ b/wmake/rules/darwinIntel64Clang/c++
@@ -20,4 +20,4 @@ LINK_LIBS   = $(c++DBUG) -lpthread
 
 LINKLIBSO   = $(CC) $(c++FLAGS) -lpthread -dynamiclib -undefined dynamic_lookup
 # LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_LIBBIN) -lfoam -L$(FOAM_MPI_LIBBIN) -lPstream
-LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_MPI_LIBBIN) -lPstream
+LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_LIBBIN)/$(FOAM_MPI)  -lPstream
diff --git a/wmake/rules/darwinIntel64Dragonegg/c++ b/wmake/rules/darwinIntel64Dragonegg/c++
index 92fab6bc4..18e39113c 100644
--- a/wmake/rules/darwinIntel64Dragonegg/c++
+++ b/wmake/rules/darwinIntel64Dragonegg/c++
@@ -19,4 +19,4 @@ LINK_LIBS   = $(c++DBUG) -lpthread
 
 LINKLIBSO   = $(CC) $(c++FLAGS) -lpthread -dynamiclib -undefined dynamic_lookup
 # LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_LIBBIN) -lfoam -L$(FOAM_MPI_LIBBIN) -lPstream
-LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_MPI_LIBBIN) -lPstream
+LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_LIBBIN)/$(FOAM_MPI)  -lPstream
diff --git a/wmake/rules/darwinIntel64Gcc/c++ b/wmake/rules/darwinIntel64Gcc/c++
index 92fab6bc4..18e39113c 100644
--- a/wmake/rules/darwinIntel64Gcc/c++
+++ b/wmake/rules/darwinIntel64Gcc/c++
@@ -19,4 +19,4 @@ LINK_LIBS   = $(c++DBUG) -lpthread
 
 LINKLIBSO   = $(CC) $(c++FLAGS) -lpthread -dynamiclib -undefined dynamic_lookup
 # LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_LIBBIN) -lfoam -L$(FOAM_MPI_LIBBIN) -lPstream
-LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_MPI_LIBBIN) -lPstream
+LINKEXE     = $(CC) $(c++FLAGS) -lpthread -L$(FOAM_LIBBIN)/$(FOAM_MPI)  -lPstream