diff --git a/bootstrap-haskell b/bootstrap-haskell
index 9213794f965fef4a874051c00c915f929bffb42e..80819cd11d387f02b0d8d85b3ebe53f2817043e3 100755
--- a/bootstrap-haskell
+++ b/bootstrap-haskell
@@ -16,11 +16,11 @@ edo()
 }
 
 eghcup() {
-	if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then
-		edo ghcup "$@"
-	else
-		edo ghcup --verbose "$@"
-	fi
+    if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then
+        edo ghcup "$@"
+    else
+        edo ghcup --verbose "$@"
+    fi
 }
 
 echo
@@ -40,29 +40,29 @@ echo "PATH components."
 echo
 
 if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
-	printf "\\033[0;35m%s\\033[0m\\n" "To proceed with the ghcup installation press ENTER, to cancel press ctrl-c."
-	printf "\\033[0;35m%s\\033[0m\\n" "Note that this script can be re-run at any given time."
-	echo
-	# Wait for user input to continue.
-	# shellcheck disable=SC2034
-	read -r answer </dev/tty
+    printf "\\033[0;35m%s\\033[0m\\n" "To proceed with the ghcup installation press ENTER, to cancel press ctrl-c."
+    printf "\\033[0;35m%s\\033[0m\\n" "Note that this script can be re-run at any given time."
+    echo
+    # Wait for user input to continue.
+    # shellcheck disable=SC2034
+    read -r answer </dev/tty
 fi
 
 edo mkdir -p "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin
 
 if command -V "ghcup" >/dev/null 2>&1 ; then
-	if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then
-		eghcup upgrade
-	fi
+    if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then
+        eghcup upgrade
+    fi
 else
-	edo curl --silent https://gitlab.haskell.org/haskell/ghcup/raw/master/ghcup > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
-	edo chmod +x "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
+    edo curl --silent https://gitlab.haskell.org/haskell/ghcup/raw/master/ghcup > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
+    edo chmod +x "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
 
 	cat <<-EOF > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env || die "Failed to create env file"
 		export PATH="\$HOME/.cabal/bin:\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/bin:\$PATH"
 		EOF
 	# shellcheck disable=SC1090
-	edo . "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env
+    edo . "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env
 fi
 
 echo
@@ -71,13 +71,13 @@ echo "  $(ghcup print-system-reqs)"
 echo
 
 if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
-	printf "\\033[0;35m%s\\033[0m\\n" "You may want to install these now, then press ENTER to proceed"
-	printf "\\033[0;35m%s\\033[0m\\n" "or press ctrl-c to abort. Installation may take a while."
-	echo
+    printf "\\033[0;35m%s\\033[0m\\n" "You may want to install these now, then press ENTER to proceed"
+    printf "\\033[0;35m%s\\033[0m\\n" "or press ctrl-c to abort. Installation may take a while."
+    echo
 
-	# Wait for user input to continue.
-	# shellcheck disable=SC2034
-	read -r answer </dev/tty
+    # Wait for user input to continue.
+    # shellcheck disable=SC2034
+    read -r answer </dev/tty
 fi
 
 eghcup --cache install
@@ -97,45 +97,45 @@ if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
     echo "configuration to do so (e.g. ~/.bashrc)."
 
     if [ -f "$HOME/.bashrc" ] ; then
-		GHCUP_PROFILE_FILE="$HOME/.bashrc"
+        GHCUP_PROFILE_FILE="$HOME/.bashrc"
     elif [ -f "$HOME/.bash_profile" ] ; then
-		GHCUP_PROFILE_FILE="$HOME/.bash_profile"
-	else
-		# most complaints we get are from mac users who
-		# need assistance of setting up their shell, so suggest
-		# to create .bash_profile, which is a good guess
-		GHCUP_PROFILE_FILE="$HOME/.bash_profile"
-	fi
-
-	if [ -f "${GHCUP_PROFILE_FILE}" ] ; then
-		printf "\\033[0;35m%s\\033[0m\\n" ""
-		printf "\\033[0;35m%s\\033[0m\\n" "Detected \"${GHCUP_PROFILE_FILE}\" on your system..."
-		printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your \"${GHCUP_PROFILE_FILE}\" to include the required PATH variable"
-		printf "\\033[0;35m%s\\033[0m\\n" "answer with YES, otherwise with NO and press ENTER."
-		printf "\\033[0;35m%s\\033[0m\\n" ""
-	elif [ -n "${BASH}" ] ; then # only suggest to create .bash_profile if we are in a bash shell
-		printf "\\033[0;35m%s\\033[0m\\n" ""
-		printf "\\033[0;35m%s\\033[0m\\n" "Detected bash shell on your system..."
-		printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically create \"${GHCUP_PROFILE_FILE}\" and include the required PATH variable"
-		printf "\\033[0;35m%s\\033[0m\\n" "answer with YES, otherwise with NO and press ENTER."
-		printf "\\033[0;35m%s\\033[0m\\n" ""
-	else
-		exit 0
-	fi
-
-	while true; do
-		read -r next_answer </dev/tty
-
-		case $next_answer in
-			[Yy]*)
-				echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${GHCUP_PROFILE_FILE}"
-				exit 0;;
-			[Nn]*)
-				exit 0;;
-			*)
-				echo "Please type YES or NO and press enter.";;
-		esac
-	done
+        GHCUP_PROFILE_FILE="$HOME/.bash_profile"
+    else
+        # most complaints we get are from mac users who
+        # need assistance of setting up their shell, so suggest
+        # to create .bash_profile, which is a good guess
+        GHCUP_PROFILE_FILE="$HOME/.bash_profile"
+    fi
+
+    if [ -f "${GHCUP_PROFILE_FILE}" ] ; then
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+        printf "\\033[0;35m%s\\033[0m\\n" "Detected \"${GHCUP_PROFILE_FILE}\" on your system..."
+        printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your \"${GHCUP_PROFILE_FILE}\" to include the required PATH variable"
+        printf "\\033[0;35m%s\\033[0m\\n" "answer with YES, otherwise with NO and press ENTER."
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+    elif [ -n "${BASH}" ] ; then # only suggest to create .bash_profile if we are in a bash shell
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+        printf "\\033[0;35m%s\\033[0m\\n" "Detected bash shell on your system..."
+        printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically create \"${GHCUP_PROFILE_FILE}\" and include the required PATH variable"
+        printf "\\033[0;35m%s\\033[0m\\n" "answer with YES, otherwise with NO and press ENTER."
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+    else
+        exit 0
+    fi
+
+    while true; do
+        read -r next_answer </dev/tty
+
+        case $next_answer in
+            [Yy]*)
+                echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${GHCUP_PROFILE_FILE}"
+                exit 0;;
+            [Nn]*)
+                exit 0;;
+            *)
+                echo "Please type YES or NO and press enter.";;
+        esac
+    done
 fi
 )