diff --git a/sys-cluster/charliecloud/charliecloud-9999.ebuild b/sys-cluster/charliecloud/charliecloud-9999.ebuild
index d7e79d58832b0..22a7048b73dee 100644
--- a/sys-cluster/charliecloud/charliecloud-9999.ebuild
+++ b/sys-cluster/charliecloud/charliecloud-9999.ebuild
@@ -54,8 +54,7 @@ src_prepare() {
 }
 
 src_configure() {
-	local econf_args=()
-	econf_args+=(
+	local econf_args=(
 		$(use_enable doc html)
 		$(use_enable ch-image)
 		# Libdir is used as a libexec-style destination.