diff --git a/internal/servertype/data_source_test.go b/internal/servertype/data_source_test.go
index 66a0f33dc..df6a4656b 100644
--- a/internal/servertype/data_source_test.go
+++ b/internal/servertype/data_source_test.go
@@ -120,25 +120,25 @@ func TestAccDataSourceList(t *testing.T) {
 				),
 
 				Check: resource.ComposeTestCheckFunc(
-					resource.TestCheckResourceAttr(all.TFID(), "server_type_ids.1", "22"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_type_ids.2", "23"),
-					resource.TestCheckResourceAttr(all.TFID(), "names.1", "cpx11"),
-					resource.TestCheckResourceAttr(all.TFID(), "names.2", "cpx21"),
-					resource.TestCheckResourceAttr(all.TFID(), "descriptions.1", "CPX 11"),
-					resource.TestCheckResourceAttr(all.TFID(), "descriptions.2", "CPX 21"),
-
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.id", "22"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.name", "cpx11"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.cores", "2"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.memory", "2"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.disk", "40"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.storage_type", "local"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.cpu_type", "shared"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.architecture", "x86"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.included_traffic", "0"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.is_deprecated", "false"),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.deprecation_announced", ""),
-					resource.TestCheckResourceAttr(all.TFID(), "server_types.1.unavailable_after", ""),
+					resource.TestCheckResourceAttr(all.TFID(), "server_type_ids.0", "22"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_type_ids.1", "23"),
+					resource.TestCheckResourceAttr(all.TFID(), "names.0", "cpx11"),
+					resource.TestCheckResourceAttr(all.TFID(), "names.1", "cpx21"),
+					resource.TestCheckResourceAttr(all.TFID(), "descriptions.0", "CPX 11"),
+					resource.TestCheckResourceAttr(all.TFID(), "descriptions.1", "CPX 21"),
+
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.id", "22"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.name", "cpx11"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.cores", "2"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.memory", "2"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.disk", "40"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.storage_type", "local"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.cpu_type", "shared"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.architecture", "x86"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.included_traffic", "0"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.is_deprecated", "false"),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.deprecation_announced", ""),
+					resource.TestCheckResourceAttr(all.TFID(), "server_types.0.unavailable_after", ""),
 				),
 			},
 		},