diff --git a/net-libs/ngtcp2/ngtcp2-1.24.0.ebuild b/net-libs/ngtcp2/ngtcp2-1.24.0.ebuild
index 72ff03c29b44c..2c15013002024 100644
--- a/net-libs/ngtcp2/ngtcp2-1.24.0.ebuild
+++ b/net-libs/ngtcp2/ngtcp2-1.24.0.ebuild
@@ -5,7 +5,7 @@ EAPI=8
 
 # Built with autotools rather than cmake to avoid circular dep (bug #951524
 
-inherit multilib-minimal
+inherit libtool multilib-minimal
 
 if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/ngtcp2/ngtcp2.git"
diff --git a/net-libs/ngtcp2/ngtcp2-1.25.0.ebuild b/net-libs/ngtcp2/ngtcp2-1.25.0.ebuild
index b9e77d7facd82..ce9290bbc3184 100644
--- a/net-libs/ngtcp2/ngtcp2-1.25.0.ebuild
+++ b/net-libs/ngtcp2/ngtcp2-1.25.0.ebuild
@@ -5,7 +5,7 @@ EAPI=8
 
 # Built with autotools rather than cmake to avoid circular dep (bug #951524
 
-inherit multilib-minimal
+inherit libtool multilib-minimal
 
 if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/ngtcp2/ngtcp2.git"
@@ -49,6 +49,7 @@ QA_CONFIG_IMPL_DECL_SKIP=(
 
 src_prepare() {
 	default
+	elibtoolize # bug #978993
 	[[ ${PV} == 9999 ]] && eautoreconf
 }
 
diff --git a/net-libs/ngtcp2/ngtcp2-9999.ebuild b/net-libs/ngtcp2/ngtcp2-9999.ebuild
index 9fbc5b215966b..ce9290bbc3184 100644
--- a/net-libs/ngtcp2/ngtcp2-9999.ebuild
+++ b/net-libs/ngtcp2/ngtcp2-9999.ebuild
@@ -5,7 +5,7 @@ EAPI=8
 
 # Built with autotools rather than cmake to avoid circular dep (bug #951524
 
-inherit multilib-minimal
+inherit libtool multilib-minimal
 
 if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/ngtcp2/ngtcp2.git"