diff --git a/configs/nitrogen6sx_defconfig b/configs/nitrogen6sx_defconfig
index e8a375fe7c..29fa4dff61 100644
--- a/configs/nitrogen6sx_defconfig
+++ b/configs/nitrogen6sx_defconfig
@@ -18,7 +18,7 @@ BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 
 # Linux headers same as kernel, a 4.14 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4.14=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_14=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
diff --git a/configs/nitrogen6x_defconfig b/configs/nitrogen6x_defconfig
index 9dc47439cd..5a53caed99 100644
--- a/configs/nitrogen6x_defconfig
+++ b/configs/nitrogen6x_defconfig
@@ -18,7 +18,7 @@ BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 
 # Linux headers same as kernel, a 4.14 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4.14=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_14=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
diff --git a/configs/nitrogen7_defconfig b/configs/nitrogen7_defconfig
index f64f011b86..a7cd8a10e1 100644
--- a/configs/nitrogen7_defconfig
+++ b/configs/nitrogen7_defconfig
@@ -17,7 +17,7 @@ BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 
 # Linux headers same as kernel, a 4.14 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4.14=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_14=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
diff --git a/configs/nitrogen8m_defconfig b/configs/nitrogen8m_defconfig
index 4c99e566b7..21402162f5 100644
--- a/configs/nitrogen8m_defconfig
+++ b/configs/nitrogen8m_defconfig
@@ -18,7 +18,7 @@ BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 
 # Linux headers same as kernel, a 4.14 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4.14=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_14=y
 
 # DDR training binaries
 BR2_PACKAGE_FREESCALE_IMX=y