diff --git a/build.config.common b/build.config.common
index 90a5196cdd59..1fc02b16bd8e 100644
--- a/build.config.common
+++ b/build.config.common
@@ -15,5 +15,3 @@ IN_KERNEL_MODULES=1
 DO_NOT_STRIP_MODULES=1
 
 HERMETIC_TOOLCHAIN=${HERMETIC_TOOLCHAIN:-1}
-
-KLEAF_SUPPRESS_BUILD_SH_DEPRECATION_WARNING=${KLEAF_SUPPRESS_BUILD_SH_DEPRECATION_WARNING:-1}