diff --git a/vcl/Library_vclplug_gtk3_kde5.mk b/vcl/Library_vclplug_gtk3_kde5.mk
index 8401a66b2c12..853ec7aafa4e 100644
--- a/vcl/Library_vclplug_gtk3_kde5.mk
+++ b/vcl/Library_vclplug_gtk3_kde5.mk
@@ -79,6 +79,7 @@ $(eval $(call gb_Library_use_libraries,vclplug_gtk3_kde5,\
 $(eval $(call gb_Library_use_externals,vclplug_gtk3_kde5,\
 	boost_headers \
 	boost_filesystem \
+	epoxy \
 	dbus \
 	graphite \
 	harfbuzz \
diff --git a/vcl/Library_vclplug_gtk4.mk b/vcl/Library_vclplug_gtk4.mk
index ed47d0978f59..bb9d82ad570f 100644
--- a/vcl/Library_vclplug_gtk4.mk
+++ b/vcl/Library_vclplug_gtk4.mk
@@ -74,6 +74,7 @@ $(eval $(call gb_Library_use_libraries,vclplug_gtk4,\
 
 $(eval $(call gb_Library_use_externals,vclplug_gtk4,\
 	boost_headers \
+	epoxy \
 	dbus \
 	graphite \
 	harfbuzz \