diff --git a/package/collectd/collectd.mk b/package/collectd/collectd.mk
index 54a816f306..f02be55dc2 100644
--- a/package/collectd/collectd.mk
+++ b/package/collectd/collectd.mk
@@ -141,6 +141,7 @@ COLLECTD_CONF_OPTS += --with-libnetsnmp=$(STAGING_DIR)/usr/bin/net-snmp-config
 endif
 ifeq ($(BR2_PACKAGE_POSTGRESQL),y)
 COLLECTD_CONF_OPTS += --with-libpq=$(STAGING_DIR)/usr/bin/pg_config
+COLLECTD_CONF_ENV += LIBS="-lpthread -lm"
 endif
 ifeq ($(BR2_PACKAGE_YAJL),y)
 COLLECTD_CONF_OPTS += --with-yajl=$(STAGING_DIR)/usr