diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
index 1573e00e9c..a91d247077 100644
--- a/toolchain/toolchain-common.in
+++ b/toolchain/toolchain-common.in
@@ -180,10 +180,15 @@ config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
 	bool
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
 
+config BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
+	bool
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
+
 # This order guarantees that the highest version is set, as kconfig
 # stops affecting a value on the first matching default.
 config BR2_TOOLCHAIN_HEADERS_AT_LEAST
 	string
+	default "3.15" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
 	default "3.14" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
 	default "3.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
 	default "3.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index f4a5ccf653..aa21f22af0 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -1018,6 +1018,10 @@ choice
 	    m = ( LINUX_VERSION_CODE >> 8  ) & 0xFF
 	    p = ( LINUX_VERSION_CODE >> 0  ) & 0xFF
 
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_15
+	bool "3.15.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
+
 config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_14
 	bool "3.14.x"
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14