diff --git a/Makefile b/Makefile
index 48949a2..fd969ed 100644
--- a/Makefile
+++ b/Makefile
@@ -63,6 +63,7 @@ ${PROJECT}.pc: ${PROJECT}.pc.in config.mk
 	$(QUIET)echo project=${PROJECT} > ${PROJECT}.pc
 	$(QUIET)echo version=${VERSION} >> ${PROJECT}.pc
 	$(QUIET)echo includedir=${PREFIX}/include >> ${PROJECT}.pc
+	$(QUIET)echo plugindir=${PLUGINDIR} >> ${PROJECT}.pc
 	$(QUIET)cat ${PROJECT}.pc.in >> ${PROJECT}.pc
 
 valgrind: debug