diff --git a/CLFS/master.sh b/CLFS/master.sh
index 7be6415..ffaaf28 100755
--- a/CLFS/master.sh
+++ b/CLFS/master.sh
@@ -1196,18 +1196,18 @@ ck_UID:
 #---------------AS ROOT
 mk_SETUP:
 	@\$(call echo_SU_request)
-	@sudo make SETUP
+	@sudo make SHELL=/bin/bash SETUP
 	@touch \$@
 
 #---------------AS LUSER
 mk_CROSS: mk_SETUP
 	@\$(call echo_PHASE,Cross and Temporary Tools)
-	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make AS_LUSER" )
+	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make SHELL=/bin/bash AS_LUSER" )
 	@sudo make restore-luser-env
 	@touch \$@
 
 mk_SUDO: mk_CROSS
-	@sudo make SUDO
+	@sudo make SHELL=/bin/bash SUDO
 	@touch \$@
 #
 # The convoluted piece of code below is necessary to provide 'make' with a valid shell in the
@@ -1314,11 +1314,11 @@ mk_SETUP:
 
 mk_CROSS: mk_SETUP
 	@\$(call echo_PHASE,Cross Tool)
-	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make AS_LUSER" )
+	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make SHELL=/bin/bash AS_LUSER" )
 	@touch \$@
 
 mk_SUDO: mk_CROSS
-	@sudo make SUDO
+	@sudo make SHELL=/bin/bash SUDO
 	@touch \$@
 
 #---------------AS ROOT
diff --git a/CLFS2/master.sh b/CLFS2/master.sh
index 2b55d2d..1da790e 100755
--- a/CLFS2/master.sh
+++ b/CLFS2/master.sh
@@ -479,17 +479,17 @@ ck_UID:
 
 mk_SETUP:
 	@\$(call echo_SU_request)
-	@sudo make SETUP
+	@sudo make SHELL=/bin/bash SETUP
 	@touch \$@
 
 mk_LUSER: mk_SETUP
 	@\$(call echo_SULUSER_request)
-	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make LUSER" )
+	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make SHELL=/bin/bash LUSER" )
 	@sudo make restore-luser-env
 	@touch \$@
 
 mk_ROOT:
-	@sudo make ROOT
+	@sudo make SHELL=/bin/bash ROOT
 	@touch \$@
 
 SETUP:  $host_prep
diff --git a/HLFS/master.sh b/HLFS/master.sh
index 2e429a0..5c56a37 100755
--- a/HLFS/master.sh
+++ b/HLFS/master.sh
@@ -569,17 +569,17 @@ ck_UID:
 
 mk_SETUP:
 	@\$(call echo_SU_request)
-	@sudo make SETUP
+	@sudo make SHELL=/bin/bash SETUP
 	@touch \$@
 
 mk_LUSER: mk_SETUP
 	@\$(call echo_SULUSER_request)
-	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make LUSER" )
+	@(sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make SHELL=/bin/bash LUSER" )
 	@sudo make restore-luser-env
 	@touch \$@
 
 mk_SUDO: mk_LUSER
-	@sudo make SUDO
+	@sudo make SHELL=/bin/bash SUDO
 	@touch \$@
 
 mk_CHROOT: mk_SUDO
diff --git a/LFS/master.sh b/LFS/master.sh
index 26ca614..1e64972 100755
--- a/LFS/master.sh
+++ b/LFS/master.sh
@@ -455,17 +455,17 @@ ck_UID:
 
 mk_SETUP:
 	@\$(call echo_SU_request)
-	@sudo make SETUP
+	@sudo SHELL=/bin/bash make SETUP
 	@touch \$@
 
 mk_LUSER: mk_SETUP
 	@\$(call echo_SULUSER_request)
-	@( sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make LUSER" )
+	@( sudo \$(SU_LUSER) "source .bashrc && cd \$(MOUNT_PT)/\$(SCRIPT_ROOT) && make SHELL=/bin/bash  LUSER" )
 	@sudo make restore-luser-env
 	@touch \$@
 
 mk_SUDO: mk_LUSER
-	@sudo make SUDO
+	@sudo make SHELL=/bin/bash  SUDO
 	touch \$@
 #
 # The convoluted piece of code below is necessary to provide 'make' with a valid shell in the