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--- a/src/internfile/mh_exec.cpp
+++ b/src/internfile/mh_exec.cpp
@@ -100,6 +100,7 @@
     ExecCmd mexec;
     MEAdv adv(filtermaxseconds);
     mexec.setAdvise(&adv);
+    mexec.putenv("RECOLL_CONFDIR", m_config->getConfDir());
     mexec.putenv(m_forPreview ? "RECOLL_FILTER_FORPREVIEW=yes" :
 		"RECOLL_FILTER_FORPREVIEW=no");