diff --git a/src/add-ons/kernel/drivers/network/wlan/idualwifi7260/dev/iwm/if_iwm.c b/src/add-ons/kernel/drivers/network/wlan/idualwifi7260/dev/iwm/if_iwm.c
index b8393adc59..11094cd6f2 100644
--- a/src/add-ons/kernel/drivers/network/wlan/idualwifi7260/dev/iwm/if_iwm.c
+++ b/src/add-ons/kernel/drivers/network/wlan/idualwifi7260/dev/iwm/if_iwm.c
@@ -539,7 +539,8 @@ iwm_fw_info_free(struct iwm_fw_info *fw)
 	firmware_put(fw->fw_fp, FIRMWARE_UNLOAD);
 	fw->fw_fp = NULL;
 	/* don't touch fw->fw_status */
-	memset(fw->fw_sects, 0, sizeof(fw->fw_sects));
+	if (fw->fw_sects)
+		memset(fw->fw_sects, 0, sizeof(fw->fw_sects));
 }
 
 static int