diff --git a/tests/test_issues_server.py b/tests/test_issues_server.py
index 2f0e17e36966d54ddf13ef0dc64717fc969a83cc..4c0e6403327ac0753e0ef6eb41523ed6048325b3 100644
--- a/tests/test_issues_server.py
+++ b/tests/test_issues_server.py
@@ -1256,7 +1256,7 @@ def test_196b(deny):
     assert cm.value.errors[0].msg == "You are not allowed to do this."
 
 
-@pytest.mark.parametrize("num", ["1e+23", "5e22", "2e-323", "2E-323", "5E22", "1E+23"])
+@pytest.mark.parametrize("num", ["1e+23", "5e22", "2e-323", "2E-323", "5E22", "1E+23", "+1E+23"])
 def test_143(num):
     """https://gitlab.com/caosdb/caosdb-server/-/issues/144"""
     db.Property(name="scientific_notation", datatype=db.DOUBLE).insert()
@@ -1273,7 +1273,7 @@ def test_143(num):
         db.execute_query(query, unique=True)
 
 
-@pytest.mark.parametrize("num", ["1 e+23", "- 5e22", "2e -323", "2E- 323", "5 E 22", "1 E+ 23"])
+@pytest.mark.parametrize("num", ["1 e+23", "- 5e22", "2e -323", "2E- 323", "5 E 22", "1 E+ 23", "+ 1"])
 def test_143_white_space(num):
     """https://gitlab.com/caosdb/caosdb-server/-/issues/144"""