diff --git a/quickemu b/quickemu
index 70ccd39..ab04ac8 100755
--- a/quickemu
+++ b/quickemu
@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 export LC_ALL=C
 
+if ((BASH_VERSINFO[0] < 4))
+then
+  echo "Sorry, you need bash 4.0 or newer to run this script."
+  exit 1
+fi
+
 function ignore_msrs_always() {
   # Make sure the host has /etc/modprobe.d
   if [ -d /etc/modprobe.d ]; then
diff --git a/quickget b/quickget
index 60eceed..4fe6b97 100755
--- a/quickget
+++ b/quickget
@@ -23,6 +23,12 @@
 #     }
 #  6. Add new OS to the argument parser at the bottom of the script
 
+if ((BASH_VERSINFO[0] < 4))
+then
+  echo "Sorry, you need bash 4.0 or newer to run this script."
+  exit 1
+fi
+
 function pretty_name() {
   local SIMPLE_NAME=""
   local PRETTY_NAME=""