diff --git a/boards/arm/gd32f4/gd32f450zk-aiotbox/src/Makefile b/boards/arm/gd32f4/gd32f450zk-aiotbox/src/Makefile
index d6e603834c0..39c9efbaed9 100644
--- a/boards/arm/gd32f4/gd32f450zk-aiotbox/src/Makefile
+++ b/boards/arm/gd32f4/gd32f450zk-aiotbox/src/Makefile
@@ -56,7 +56,7 @@ ifeq ($(CONFIG_MMCSD),y)
 CSRCS += gd32f4xx_sdio.c
 endif
 
-ifeq ($(CONFIG_I2C), y)
+ifeq ($(CONFIG_I2C),y)
 CSRCS += gd32f4xx_i2c.c
 endif
 
diff --git a/boards/arm/gd32f4/gd32f450zk-eval/src/Makefile b/boards/arm/gd32f4/gd32f450zk-eval/src/Makefile
index 6a4361c09d6..8f87b677fb3 100644
--- a/boards/arm/gd32f4/gd32f450zk-eval/src/Makefile
+++ b/boards/arm/gd32f4/gd32f450zk-eval/src/Makefile
@@ -60,7 +60,7 @@ ifeq ($(CONFIG_MTD_GD25),y)
 CSRCS += gd32f4xx_gd25.c
 endif
 
-ifeq ($(CONFIG_MTD_AT24XX), y)
+ifeq ($(CONFIG_MTD_AT24XX),y)
 CSRCS += gd32f4xx_at24.c
 endif
 
diff --git a/boards/arm/gd32f4/gd32f470ik-eval/src/Makefile b/boards/arm/gd32f4/gd32f470ik-eval/src/Makefile
index f4d31355601..ad497847e28 100644
--- a/boards/arm/gd32f4/gd32f470ik-eval/src/Makefile
+++ b/boards/arm/gd32f4/gd32f470ik-eval/src/Makefile
@@ -60,7 +60,7 @@ ifeq ($(CONFIG_MTD_GD25),y)
 CSRCS += gd32f4xx_gd25.c
 endif
 
-ifeq ($(CONFIG_MTD_AT24XX), y)
+ifeq ($(CONFIG_MTD_AT24XX),y)
 CSRCS += gd32f4xx_at24.c
 endif
 
diff --git a/boards/arm/gd32f4/gd32f470zk-aiotbox/src/Makefile b/boards/arm/gd32f4/gd32f470zk-aiotbox/src/Makefile
index 0c1d6404056..70295bf60b2 100644
--- a/boards/arm/gd32f4/gd32f470zk-aiotbox/src/Makefile
+++ b/boards/arm/gd32f4/gd32f470zk-aiotbox/src/Makefile
@@ -60,19 +60,19 @@ ifeq ($(CONFIG_MTD_GD25),y)
 CSRCS += gd32f4xx_gd25.c
 endif
 
-ifeq ($(CONFIG_MTD_AT24XX), y)
+ifeq ($(CONFIG_MTD_AT24XX),y)
 CSRCS += gd32f4xx_at24.c
 endif
 
-ifeq ($(CONFIG_BOARDCTL_RESET), y)
+ifeq ($(CONFIG_BOARDCTL_RESET),y)
 CSRCS += gd32f4xx_reset.c
 endif
 
-ifeq ($(CONFIG_ETC_ROMFS), y)
+ifeq ($(CONFIG_ETC_ROMFS),y)
 CSRCS += etc_romfs.c
 endif
 
-ifeq ($(CONFIG_I2C), y)
+ifeq ($(CONFIG_I2C),y)
 CSRCS += gd32f4xx_i2c.c
 endif
 
diff --git a/boards/arm/gd32f4/gd32f470zk-eval/src/Makefile b/boards/arm/gd32f4/gd32f470zk-eval/src/Makefile
index 0dbc6dbb5d7..0ac508bc75e 100644
--- a/boards/arm/gd32f4/gd32f470zk-eval/src/Makefile
+++ b/boards/arm/gd32f4/gd32f470zk-eval/src/Makefile
@@ -60,15 +60,15 @@ ifeq ($(CONFIG_MTD_GD25),y)
 CSRCS += gd32f4xx_gd25.c
 endif
 
-ifeq ($(CONFIG_MTD_AT24XX), y)
+ifeq ($(CONFIG_MTD_AT24XX),y)
 CSRCS += gd32f4xx_at24.c
 endif
 
-ifeq ($(CONFIG_BOARDCTL_RESET), y)
+ifeq ($(CONFIG_BOARDCTL_RESET),y)
 CSRCS += gd32f4xx_reset.c
 endif
 
-ifeq ($(CONFIG_ETC_ROMFS), y)
+ifeq ($(CONFIG_ETC_ROMFS),y)
 CSRCS += etc_romfs.c
 endif