diff --git a/meta-oe/recipes-dbs/postgresql/postgresql.inc b/meta-oe/recipes-dbs/postgresql/postgresql.inc
index 4fc2e47b35..fb3bca2724 100644
--- a/meta-oe/recipes-dbs/postgresql/postgresql.inc
+++ b/meta-oe/recipes-dbs/postgresql/postgresql.inc
@@ -242,7 +242,7 @@ postgresql_fix_sources () {
 	for f in ${PKGD}${TARGET_DBGSRC_DIR}/src/pl/plperl/Util.c \
 			${PKGD}${TARGET_DBGSRC_DIR}/src/pl/plperl/SPI.c; do
 		if [ -e $f ]; then
-			sed -i -e 's#${B}/../${P}#${TARGET_DBGSRC_DIR}#g' $f
+			sed -i -e 's#${B}/../${BP}#${TARGET_DBGSRC_DIR}#g' $f
 		fi
 	done
 }