diff --git a/cura/Settings/DatabaseHandlers/IntentDatabaseHandler.py b/cura/Settings/DatabaseHandlers/IntentDatabaseHandler.py
index 1a48d652a7..65c966dd9e 100644
--- a/cura/Settings/DatabaseHandlers/IntentDatabaseHandler.py
+++ b/cura/Settings/DatabaseHandlers/IntentDatabaseHandler.py
@@ -18,7 +18,8 @@ class IntentDatabaseHandler(DatabaseMetadataContainerController):
                                 setting_version = ?
                             WHERE id = ?
                         """,
-            select_query = "SELECT * FROM intents where id = ?",
+            select_query = "SELECT * FROM intents WHERE id = ?",
+            delete_query = "DELETE FROM intents WHERE id = ?",
             table_query="""CREATE TABLE intents
                (
                    id text,
diff --git a/cura/Settings/DatabaseHandlers/QualityDatabaseHandler.py b/cura/Settings/DatabaseHandlers/QualityDatabaseHandler.py
index d0bb987b95..c6e02e3ac3 100644
--- a/cura/Settings/DatabaseHandlers/QualityDatabaseHandler.py
+++ b/cura/Settings/DatabaseHandlers/QualityDatabaseHandler.py
@@ -18,7 +18,8 @@ class QualityDatabaseHandler(DatabaseMetadataContainerController):
                                     setting_version = ?
                                 WHERE id = ?
                             """,
-            select_query = "SELECT * FROM qualities where id = ?",
+            select_query = "SELECT * FROM qualities WHERE id = ?",
+            delete_query = "DELETE FROM qualities WHERE id = ?",
             table_query = """CREATE TABLE qualities
                 (
                     id text,
diff --git a/cura/Settings/DatabaseHandlers/VariantDatabaseHandler.py b/cura/Settings/DatabaseHandlers/VariantDatabaseHandler.py
index 4673a3d60e..c2987df675 100644
--- a/cura/Settings/DatabaseHandlers/VariantDatabaseHandler.py
+++ b/cura/Settings/DatabaseHandlers/VariantDatabaseHandler.py
@@ -15,7 +15,8 @@ class VariantDatabaseHandler(DatabaseMetadataContainerController):
                                     setting_version = ?
                                 WHERE id = ?
                            """,
-            select_query= "SELECT * FROM variants where id = ?",
+            select_query = "SELECT * FROM variants WHERE id = ?",
+            delete_query = "DELETE FROM variants WHERE id = ?",
             table_query = """CREATE TABLE variants
                 (
                     id text,