diff --git a/mt7915/Makefile b/mt7915/Makefile
index 40c80617..80e49244 100644
--- a/mt7915/Makefile
+++ b/mt7915/Makefile
@@ -1,4 +1,4 @@
-#SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: ISC
 
 obj-$(CONFIG_MT7915E) += mt7915e.o
 
diff --git a/mt7915/mcu.h b/mt7915/mcu.h
index 4636b7dc..49e41874 100644
--- a/mt7915/mcu.h
+++ b/mt7915/mcu.h
@@ -1067,7 +1067,7 @@ enum {
 };
 
 enum mcu_cipher_type {
-	MCU_CIPHER_NONE,
+	MCU_CIPHER_NONE = 0,
 	MCU_CIPHER_WEP40,
 	MCU_CIPHER_WEP104,
 	MCU_CIPHER_WEP128,
diff --git a/mt7921/Makefile b/mt7921/Makefile
index 193141ab..1187aced 100644
--- a/mt7921/Makefile
+++ b/mt7921/Makefile
@@ -1,4 +1,4 @@
-#SPDX-License-Identifier: ISC
+# SPDX-License-Identifier: ISC
 
 obj-$(CONFIG_MT7921_COMMON) += mt7921-common.o
 obj-$(CONFIG_MT7921E) += mt7921e.o
diff --git a/mt7921/mcu.h b/mt7921/mcu.h
index 945015ab..edc0c73f 100644
--- a/mt7921/mcu.h
+++ b/mt7921/mcu.h
@@ -199,7 +199,7 @@ struct sta_rec_sec {
 } __packed;
 
 enum mcu_cipher_type {
-	MCU_CIPHER_NONE,
+	MCU_CIPHER_NONE = 0,
 	MCU_CIPHER_WEP40,
 	MCU_CIPHER_WEP104,
 	MCU_CIPHER_WEP128,