diff --git a/recipes-musicians/zyn/mruby-zest.inc b/recipes-musicians/zyn/mruby-zest.inc
index 9218ae2..d2a705d 100644
--- a/recipes-musicians/zyn/mruby-zest.inc
+++ b/recipes-musicians/zyn/mruby-zest.inc
@@ -13,7 +13,7 @@ PV = "3.0.5+git${SRCPV}"
 PE = "1"
 S = "${WORKDIR}/git"
 
-inherit python3native
+inherit python3native pkgconfig
 
 DEPENDS += " \
     ruby-native \