diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 85c15c5c2..75db754bb 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -79,7 +79,7 @@
 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT	50
 #endif /* CONFIG_CTRL_IFACE_UDP */
 
-const char *FRAGATTACK_VERSION = "1.2";
+const char *FRAGATTACK_VERSION = "1.3";
 
 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
 				    enum wpa_msg_type type,
diff --git a/research/fraginternals.py b/research/fraginternals.py
index 949d0ded9..aee8a491f 100644
--- a/research/fraginternals.py
+++ b/research/fraginternals.py
@@ -11,7 +11,7 @@ from wpaspy import Ctrl
 from scapy.contrib.wpa_eapol import WPA_key
 from scapy.arch.common import get_if_raw_hwaddr
 
-FRAGVERSION = "1.2"
+FRAGVERSION = "1.3"
 
 # ----------------------------------- Utility Commands -----------------------------------
 
@@ -730,6 +730,12 @@ class Daemon(metaclass=abc.ABCMeta):
 				log(STATUS, "To ignore this warning and timeout add the parameter --no-drivercheck")
 				time.sleep(5)
 
+			version = open("/sys/module/mac80211/parameters/fragattack_version").read().strip()
+			if version != FRAGVERSION:
+				log(ERROR, f"This script has version {FRAGVERSION} but the modified drivers are version {version}.")
+				log(ERROR, f"Please recompile and reinstall the modified drivers (see the README for details).")
+				quit(1)
+
 		# 1. Assign/create interfaces according to provided options
 		if self.options.hwsim:
 			# TODO: Automatically create both interfaces?
diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index 428bddef0..866a924b5 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -68,7 +68,7 @@
 #include <net/ethernet.h>
 #endif
 
-const char *FRAGATTACK_VERSION = "1.2";
+const char *FRAGATTACK_VERSION = "1.3";
 
 static int wpa_supplicant_global_iface_list(struct wpa_global *global,
 					    char *buf, int len);