diff --git a/src/pbf_processor.cpp b/src/pbf_processor.cpp
index cea28bb7..9f776eaf 100644
--- a/src/pbf_processor.cpp
+++ b/src/pbf_processor.cpp
@@ -279,7 +279,7 @@ bool PbfProcessor::ReadRelations(
 	int boundaryKey = findStringPosition(pb, "boundary");
 	int innerKey= findStringPosition(pb, "inner");
 	int outerKey= findStringPosition(pb, "outer");
-	if (typeKey >-1 && mpKey>-1) {
+	if (typeKey >-1) {
 		int j = -1;
 		for (PbfReader::Relation pbfRelation : pg.relations()) {
 			j++;