diff --git a/etc/settings.csh b/etc/settings.csh
index 31c46d8cd..f752c2e48 100644
--- a/etc/settings.csh
+++ b/etc/settings.csh
@@ -65,6 +65,7 @@ setenv FOAM_TUTORIALS $WM_PROJECT_DIR/tutorials
 setenv FOAM_UTILITIES $FOAM_APP/utilities
 setenv FOAM_SOLVERS $FOAM_APP/solvers
 setenv FOAM_RUN $WM_PROJECT_USER_DIR/run
+setenv FOAM_TEST_HARNESS_DIR $WM_PROJECT_DIR/testHarness/foam-extend/$WM_PROJECT_VERSION
 
 # add FOAM scripts and wmake to the path
 set path=($WM_DIR $WM_PROJECT_DIR/bin $path)
diff --git a/etc/settings.sh b/etc/settings.sh
index 90bce6e96..28a78bd8b 100755
--- a/etc/settings.sh
+++ b/etc/settings.sh
@@ -103,6 +103,7 @@ export FOAM_TUTORIALS=$WM_PROJECT_DIR/tutorials
 export FOAM_UTILITIES=$FOAM_APP/utilities
 export FOAM_SOLVERS=$FOAM_APP/solvers
 export FOAM_RUN=$WM_PROJECT_USER_DIR/run
+export FOAM_TEST_HARNESS_DIR=$WM_PROJECT_DIR/testHarness/foam-extend/$WM_PROJECT_VERSION
 
 # add FOAM scripts and wmake to the path
 export PATH=$WM_DIR:$WM_PROJECT_DIR/bin:$PATH