diff --git a/scripts/chapter8/8.14-flex.sh b/scripts/chapter8/8.14-flex.sh
new file mode 100644
index 0000000..a6a7526
--- /dev/null
+++ b/scripts/chapter8/8.14-flex.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+
+cd /sources
+tar xf flex-2.6.4.tar.gz
+flex-2.6.4
+
+./configure --prefix=/usr \
+            --docdir=/usr/share/doc/flex-2.6.4 \
+            --disable-static
+
+if [ $? -ne 0 ]
+then
+  exit 1
+fi
+
+make -j5
+
+if [ $? -ne 0 ]
+then
+  exit 1
+fi
+
+make check
+
+make install
+
+ln -sv flex /usr/bin/lex
+
+cd /sources
+rm -rf flex-2.6.4
+
diff --git a/scripts/main.sh b/scripts/main.sh
index 32de21f..3b5aaaa 100644
--- a/scripts/main.sh
+++ b/scripts/main.sh
@@ -702,3 +702,15 @@ then
 	stop_script "chapter8/8.13-bc.sh"
 fi
 
+# Chapter 8.14
+# ============
+echo "Building flex"
+su -c "bash $SCRIPT/chapter8/8.14-flex.sh"
+
+# Exit on error
+check_exit_code
+if [ $exit_status -ne 0 ]
+then
+	stop_script "chapter8/8.14-flex.sh"
+fi
+