diff --git a/package/pinentry/pinentry.mk b/package/pinentry/pinentry.mk
index e8db34257f..d3e6b7a1be 100644
--- a/package/pinentry/pinentry.mk
+++ b/package/pinentry/pinentry.mk
@@ -39,7 +39,7 @@ endif
 ifeq ($(BR2_PACKAGE_PINENTRY_QT4),y)
 # -pthread needs to be passed for certain toolchains
 # http://autobuild.buildroot.net/results/6be/6be109ccedec603a67cebdb31b55865dcce0e128/
-PINENTRY_CONF_OPTS += LIBS=-pthread
+PINENTRY_CONF_OPTS += LIBS=-pthread MOC=$(HOST_DIR)/usr/bin/moc
 PINENTRY_CONF_OPTS += --enable-pinentry-qt4
 PINENTRY_DEPENDENCIES += qt
 else