diff --git a/package/rp-pppoe/rp-pppoe.mk b/package/rp-pppoe/rp-pppoe.mk
index 43062549b8..99d231e579 100644
--- a/package/rp-pppoe/rp-pppoe.mk
+++ b/package/rp-pppoe/rp-pppoe.mk
@@ -15,8 +15,16 @@ RP_PPPOE_TARGET_SCRIPTS = pppoe-connect pppoe-init pppoe-setup pppoe-start \
 	pppoe-status pppoe-stop
 RP_PPPOE_MAKE_OPTS = PLUGIN_DIR=/usr/lib/pppd/$(PPPD_VERSION)
 RP_PPPOE_CONF_OPTS = --disable-debugging
+
+# The pppd, echo, setsid and id paths must be the ones on the
+# target. Indeed, the result of these checks is used to replace
+# variables in scripts that are installed in the target.
 RP_PPPOE_CONF_ENV = \
 	rpppoe_cv_pack_bitfields=normal \
+	ac_cv_path_PPPD=/usr/sbin/pppd \
+	ac_cv_path_ECHO=/bin/echo \
+	ac_cv_path_SETSID=/usr/bin/setsid \
+	ac_cv_path_ID=/usr/bin/id \
 	PPPD_H=$(PPPD_DIR)/pppd/pppd.h
 
 define RP_PPPOE_INSTALL_TARGET_CMDS