diff --git a/tests/files/app.lua b/tests/files/app.lua
index 87896f3..e5e64f2 100644
--- a/tests/files/app.lua
+++ b/tests/files/app.lua
@@ -205,19 +205,22 @@ function truncate()
     _truncate(box.space.tester)
     _truncate(box.space.no_schema_space)
 
-    if box.space.sql_space ~= nil then
-        box.execute('DELETE FROM sql_space')
-        box.execute('DELETE FROM SQL_SPACE')
-    end
-
-    if box.space.sql_space_autoincrement ~= nil then
-        box.execute('DELETE FROM sql_space_autoincrement')
-        box.execute('DELETE FROM SQL_SPACE_AUTOINCREMENT')
-    end
-
-    if box.space.sql_space_autoincrement_multiple ~= nil then
-        box.execute('DELETE FROM sql_space_autoincrement_multiple')
-        box.execute('DELETE FROM SQL_SPACE_AUTOINCREMENT_MULTIPLE')
+    local sql_spaces = {
+        'sql_space',
+        'sql_space_autoincrement',
+        'sql_space_autoincrement_multiple',
+    }
+    for _, sql_space in ipairs(sql_spaces) do
+        local variants = {
+            sql_space,
+            sql_space:upper(),
+        }
+
+        for _, variant in ipairs(variants) do
+            if box.space[variant] ~= nil then
+                box.execute('DELETE FROM ' .. variant)
+            end
+        end
     end
 
     _truncate(box.space.tester_ext_dec)