diff --git a/classes/external-toolchain.bbclass b/classes/external-toolchain.bbclass
index fda5267..fbc852c 100644
--- a/classes/external-toolchain.bbclass
+++ b/classes/external-toolchain.bbclass
@@ -11,7 +11,7 @@
 
 # Since these are prebuilt binaries, there are no source files to checksum for
 # LIC_FILES_CHKSUM, so use the license from common-licenses
-inherit common-license
+inherit common-license external-debugsrc
 
 OVERRIDES =. "external:"