diff --git a/etc/bashrc b/etc/bashrc
index 586d1ec54..688bfde0a 100755
--- a/etc/bashrc
+++ b/etc/bashrc
@@ -34,7 +34,7 @@
 
 export WM_PROJECT=foam
 export WM_FORK=extend
-export WM_PROJECT_VERSION=5.0
+export WM_PROJECT_VERSION=4.1
 
 # helps to easily write #ifdefs to detect a dev-version
 export FOAM_DEV=1
diff --git a/etc/cshrc b/etc/cshrc
index b79e15e15..683293a0f 100644
--- a/etc/cshrc
+++ b/etc/cshrc
@@ -32,7 +32,7 @@
 
 setenv WM_PROJECT foam
 setenv WM_FORK extend
-setenv WM_PROJECT_VERSION 5.0
+setenv WM_PROJECT_VERSION 4.1
 
 # helps to easily write #ifdefs to detect a foam-extend version
 setenv FOAM_DEV 1
@@ -158,8 +158,8 @@ if ( ! $?WM_LABEL_SIZE ) setenv WM_LABEL_SIZE 32
 
 # WM_COMPILE_OPTION = Opt | Debug | Prof
 if ( ! $?WM_COMPILE_OPTION ) setenv WM_COMPILE_OPTION Opt
-setenv WM_COMPILE_OPTION Opt
-#setenv WM_COMPILE_OPTION Debug
+#setenv WM_COMPILE_OPTION Opt
+setenv WM_COMPILE_OPTION Debug
 
 # WM_MPLIB = SYSTEMOPENMPI | OPENMPI | MPICH | MPICH-GM | HPMPI | GAMMA | MPI | QSMPI | MVAPICH2
 if ( ! $?WM_MPLIB ) setenv WM_MPLIB OPENMPI