diff --git a/target/imagebuilder/Config.in b/target/imagebuilder/Config.in
index c1a5212f6d..df6de04536 100644
--- a/target/imagebuilder/Config.in
+++ b/target/imagebuilder/Config.in
@@ -1,6 +1,6 @@
 config IB
 	bool "Build the OpenWrt Image Builder"
-	depends on !EXTERNAL_TOOLCHAIN
+	depends on !EXTERNAL_TOOLCHAIN || EXTERNAL_TOOLCHAIN_IB
 	default BUILDBOT
 	help
 	  This is essentially a stripped-down version of the buildroot
diff --git a/target/sdk/Config.in b/target/sdk/Config.in
index 9fee5abdc3..1ea18d0aa8 100644
--- a/target/sdk/Config.in
+++ b/target/sdk/Config.in
@@ -1,6 +1,6 @@
 config SDK
 	bool "Build the OpenWrt SDK"
-	depends on !EXTERNAL_TOOLCHAIN
+	depends on !EXTERNAL_TOOLCHAIN || EXTERNAL_TOOLCHAIN_SDK
 	default BUILDBOT
 	help
 	  This is essentially a stripped-down version of the buildroot
diff --git a/toolchain/Config.in b/toolchain/Config.in
index 71ebbeb47b..056932bf86 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -194,6 +194,22 @@ menuconfig EXTERNAL_TOOLCHAIN
 		  Specify additional directories searched for libraries (override LDFLAGS).
 		  Use ./DIR for directories relative to the root above.
 
+	config EXTERNAL_TOOLCHAIN_IB
+		bool
+		prompt "Allow Imagebuilder with external toolchain" if DEVEL
+		depends on EXTERNAL_TOOLCHAIN
+		default n
+		help
+		  Allows selecting to build ImageBuilder even with external toolchain.
+
+	config EXTERNAL_TOOLCHAIN_SDK
+		bool
+		prompt "Allow SDK with external toolchain" if DEVEL
+		depends on EXTERNAL_TOOLCHAIN
+		default n
+		help
+		  Allows selecting to build SDK even with external toolchain.
+
 config NEED_TOOLCHAIN
 	bool
 	depends on DEVEL