diff --git a/Tests/LibSQL/TestSqlDatabase.cpp b/Tests/LibSQL/TestSqlDatabase.cpp
index 1128f8f6f8..f5738af391 100644
--- a/Tests/LibSQL/TestSqlDatabase.cpp
+++ b/Tests/LibSQL/TestSqlDatabase.cpp
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
+ * Copyright (c) 2023, Jelle Raaijmakers <jelle@gmta.nl>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -7,6 +8,8 @@
 #include <unistd.h>
 
 #include <AK/ScopeGuard.h>
+#include <AK/StringBuilder.h>
+#include <LibCore/System.h>
 #include <LibSQL/BTree.h>
 #include <LibSQL/Database.h>
 #include <LibSQL/Heap.h>
@@ -15,21 +18,15 @@
 #include <LibSQL/Value.h>
 #include <LibTest/TestCase.h>
 
-NonnullRefPtr<SQL::SchemaDef> setup_schema(SQL::Database&);
-NonnullRefPtr<SQL::TableDef> setup_table(SQL::Database&);
-void insert_into_table(SQL::Database&, int);
-void verify_table_contents(SQL::Database&, int);
-void insert_and_verify(int);
-void commit(SQL::Database&);
-
-NonnullRefPtr<SQL::SchemaDef> setup_schema(SQL::Database& db)
+static NonnullRefPtr<SQL::SchemaDef> setup_schema(SQL::Database& db)
 {
     auto schema = SQL::SchemaDef::construct("TestSchema");
     MUST(db.add_schema(schema));
     return schema;
 }
 
-NonnullRefPtr<SQL::TableDef> setup_table(SQL::Database& db)
+// FIXME: using the return value for SQL::TableDef to insert a row results in a segfault
+static NonnullRefPtr<SQL::TableDef> setup_table(SQL::Database& db)
 {
     auto schema = setup_schema(db);
     auto table = SQL::TableDef::construct(schema, "TestTable");
@@ -40,7 +37,7 @@ NonnullRefPtr<SQL::TableDef> setup_table(SQL::Database& db)
     return table;
 }
 
-void insert_into_table(SQL::Database& db, int count)
+static void insert_into_table(SQL::Database& db, int count)
 {
     auto table = MUST(db.get_table("TestSchema", "TestTable"));
 
@@ -55,7 +52,7 @@ void insert_into_table(SQL::Database& db, int count)
     }
 }
 
-void verify_table_contents(SQL::Database& db, int expected_count)
+static void verify_table_contents(SQL::Database& db, int expected_count)
 {
     auto table = MUST(db.get_table("TestSchema", "TestTable"));
 
@@ -73,12 +70,12 @@ void verify_table_contents(SQL::Database& db, int expected_count)
     EXPECT_EQ(sum, (expected_count * (expected_count - 1)) / 2);
 }
 
-void commit(SQL::Database& db)
+static void commit(SQL::Database& db)
 {
     TRY_OR_FAIL(db.commit());
 }
 
-void insert_and_verify(int count)
+static void insert_and_verify(int count)
 {
     ScopeGuard guard([]() { unlink("/tmp/test.db"); });
     {