diff --git a/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts b/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48-a1.dts
similarity index 98%
rename from target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts
rename to target/linux/realtek/dts/rtl8393_zyxel_gs1900-48-a1.dts
index de53263fa4..c236957809 100644
--- a/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48.dts
+++ b/target/linux/realtek/dts/rtl8393_zyxel_gs1900-48-a1.dts
@@ -6,8 +6,8 @@
 #include <dt-bindings/gpio/gpio.h>
 
 / {
-	compatible = "zyxel,gs1900-48", "realtek,rtl8393-soc";
-	model = "Zyxel GS1900-48";
+	compatible = "zyxel,gs1900-48-a1", "realtek,rtl8393-soc";
+	model = "Zyxel GS1900-48 A1";
 
 	aliases {
 		led-boot = &led_sys;
diff --git a/target/linux/realtek/image/rtl839x.mk b/target/linux/realtek/image/rtl839x.mk
index 5f9b6d56c6..2412e5764e 100644
--- a/target/linux/realtek/image/rtl839x.mk
+++ b/target/linux/realtek/image/rtl839x.mk
@@ -73,10 +73,12 @@ define Device/tplink_sg2452p-v4
 endef
 TARGET_DEVICES += tplink_sg2452p-v4
 
-define Device/zyxel_gs1900-48
+define Device/zyxel_gs1900-48-a1
   $(Device/zyxel_gs1900)
   SOC := rtl8393
   DEVICE_MODEL := GS1900-48
+  DEVICE_VARIANT := A1
   ZYXEL_VERS := AAHN
+  SUPPORTED_DEVICES += zyxel,gs1900-48
 endef
-TARGET_DEVICES += zyxel_gs1900-48
+TARGET_DEVICES += zyxel_gs1900-48-a1