diff --git a/sys-libs/libcxxabi/libcxxabi-10.0.0.9999.ebuild b/sys-libs/libcxxabi/libcxxabi-10.0.0.9999.ebuild
index 316f3e78ca835..edc18f6fea904 100644
--- a/sys-libs/libcxxabi/libcxxabi-10.0.0.9999.ebuild
+++ b/sys-libs/libcxxabi/libcxxabi-10.0.0.9999.ebuild
@@ -31,7 +31,8 @@ RDEPEND="
 	)"
 # llvm-6 for new lit options
 DEPEND="${RDEPEND}
-	>=sys-devel/llvm-6
+	>=sys-devel/llvm-6"
+BDEPEND="
 	test? ( >=sys-devel/clang-3.9.0
 		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
 
diff --git a/sys-libs/libcxxabi/libcxxabi-9.0.0.9999.ebuild b/sys-libs/libcxxabi/libcxxabi-9.0.0.9999.ebuild
index 163710a82a71c..70fcb998c05d3 100644
--- a/sys-libs/libcxxabi/libcxxabi-9.0.0.9999.ebuild
+++ b/sys-libs/libcxxabi/libcxxabi-9.0.0.9999.ebuild
@@ -32,7 +32,8 @@ RDEPEND="
 	)"
 # llvm-6 for new lit options
 DEPEND="${RDEPEND}
-	>=sys-devel/llvm-6
+	>=sys-devel/llvm-6"
+BDEPEND="
 	test? ( >=sys-devel/clang-3.9.0
 		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"