1 files changed, 1 insertions, 1 deletions

diff --git a/language-to-store/src/main/java/tools/refinery/language/mapping/PartialModelMapper.java b/language-to-store/src/main/java/tools/refinery/language/mapping/PartialModelMapper.java
index d37c9ec7..9a4d0aa7 100644
--- a/language-to-store/src/main/java/tools/refinery/language/mapping/PartialModelMapper.java
+++ b/language-to-store/src/main/java/tools/refinery/language/mapping/PartialModelMapper.java
@@ -132,7 +132,7 @@ public class PartialModelMapper {
                 for (tools.refinery.language.model.problem.Relation r : partialModelMapperDTO.getRelationMap().keySet()) {
                         if (r.getName().equals(searchedRelation)) relation = r;
                 }
-                if(relation.equals(null)) throw new PartialModelMapperException(errorText);
+                if(relation == null) throw new PartialModelMapperException(errorText);
                 return relation;
         }