diff -ruN OpenFOAM-9-20211122-orig/etc/bashrc OpenFOAM-9-20211122/etc/bashrc
--- OpenFOAM-9-20211122-orig/etc/bashrc	2022-05-04 18:27:26.263132311 +0200
+++ OpenFOAM-9-20211122/etc/bashrc	2022-05-04 18:30:16.873454768 +0200
@@ -111,7 +111,7 @@
 # Location of installation
 # ~~~~~~~~~~~~~~~~~~~~~~~~
 export WM_PROJECT_INST_DIR=$FOAM_INST_DIR
-export WM_PROJECT_DIR=$WM_PROJECT_INST_DIR/$WM_PROJECT-$WM_PROJECT_VERSION
+export WM_PROJECT_DIR=$(cd $(dirname ${BASH_SOURCE:-$0})/.. && pwd -P)
 
 if [ -d "$WM_PROJECT_DIR" ]
 then