diff --git a/pyproject.toml b/pyproject.toml
index 30e4649..d4e833c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ authors = [
 maintainers = [
     {name = "Tim Holzheim", email = "tim.holzheim@rwth-aachen.de"},
 ]
-version = "0.0.14"
+version = "0.0.15"
 readme = "README.md"
 license= "Apache-2.0"
 dependencies = [
diff --git a/src/wikibasemigrator/migrator.py b/src/wikibasemigrator/migrator.py
index 2fa0ac8..58f953c 100644
--- a/src/wikibasemigrator/migrator.py
+++ b/src/wikibasemigrator/migrator.py
@@ -836,10 +836,11 @@ def add_migration_mark_to_entity(
         :param migration_mark:
         :return:
         """
-        if migration_mark is None:
+        if migration_mark is None or migration_mark:
             return
         claim = migration_mark.get_claim()
-        EntityMerger().merge_statement(claim, translation.entity)
+        if claim is not None:
+            EntityMerger().merge_statement(claim, translation.entity)
 
     @staticmethod
     def _migrate_entity(
diff --git a/src/wikibasemigrator/model/migration_mark.py b/src/wikibasemigrator/model/migration_mark.py
index fd8c78d..dd8edce 100644
--- a/src/wikibasemigrator/model/migration_mark.py
+++ b/src/wikibasemigrator/model/migration_mark.py
@@ -34,7 +34,7 @@ def get_claim(self) -> datatypes.BaseDataType | None:
         Get the migration mark as claim
         :return:
         """
-        if self.value is None:
+        if self.value is None or self.value == "":
             return None
         claim = None
         match self.property_type: