diff --git a/IHP/IDE/CodeGen/MigrationGenerator.hs b/IHP/IDE/CodeGen/MigrationGenerator.hs
index 4992ff368..c21631b52 100644
--- a/IHP/IDE/CodeGen/MigrationGenerator.hs
+++ b/IHP/IDE/CodeGen/MigrationGenerator.hs
@@ -428,7 +428,7 @@ normalizeTable table@(CreateTable { .. }) = ( CreateTable { columns = fst normal
                 Left c -> Just c
 
 normalizeConstraint :: Text -> Constraint -> Constraint
-normalizeConstraint _ ForeignKeyConstraint { name, columnName, referenceTable, referenceColumn, onDelete } = ForeignKeyConstraint { name, columnName = Text.toLower columnName, referenceTable = Text.toLower referenceTable, referenceColumn = fmap Text.toLower referenceColumn, onDelete = Just (fromMaybe NoAction onDelete) }
+normalizeConstraint _ ForeignKeyConstraint { name, columnName, referenceTable, referenceColumn, onDelete } = ForeignKeyConstraint { name = truncateIdentifier <$> name, columnName = Text.toLower columnName, referenceTable = Text.toLower referenceTable, referenceColumn = fmap Text.toLower referenceColumn, onDelete = Just (fromMaybe NoAction onDelete) }
 normalizeConstraint tableName constraint@(UniqueConstraint { name = Just uniqueName, columnNames }) | length columnNames > 1 =
         -- Single column UNIQUE constraints like:
         --
diff --git a/Test/IDE/CodeGeneration/MigrationGenerator.hs b/Test/IDE/CodeGeneration/MigrationGenerator.hs
index 16c64739b..abe4ad431 100644
--- a/Test/IDE/CodeGeneration/MigrationGenerator.hs
+++ b/Test/IDE/CodeGeneration/MigrationGenerator.hs
@@ -1377,6 +1377,17 @@ CREATE POLICY "Users can read and edit their own record" ON public.users USING (
 
                 diffSchemas targetSchema actualSchema `shouldBe` migration
 
+            it "should truncate very long constraint names" do
+                let actualSchema = sql $ cs [plain|
+                    ALTER TABLE organization_num_employees_ranges ADD CONSTRAINT organization_num_employees_ranges_ref_prospect_search_request_id FOREIGN KEY (prospect_search_request_id) REFERENCES prospect_search_requests (id) ON DELETE NO ACTION;
+                |]
+                let targetSchema = sql $ cs [plain|
+                    ALTER TABLE organization_num_employees_ranges ADD CONSTRAINT organization_num_employees_ranges_ref_prospect_search_request_i FOREIGN KEY (prospect_search_request_id) REFERENCES prospect_search_requests (id) ON DELETE NO ACTION;
+                |]
+                let migration = []
+
+                diffSchemas targetSchema actualSchema `shouldBe` migration
+
             it "should deal with nested SELECT expressions inside a policy" do
                 let actualSchema = sql $ cs [plain|
                     CREATE POLICY "Allow users to see their own company" ON public.companies USING ((id = ( SELECT users.company_id