diff --git a/crates/swc_css_parser/tests/fixture.rs b/crates/swc_css_parser/tests/fixture.rs
index ce767cb73d11..8b406f20c027 100644
--- a/crates/swc_css_parser/tests/fixture.rs
+++ b/crates/swc_css_parser/tests/fixture.rs
@@ -518,6 +518,7 @@ fn stylesheet_span_visualizer(input: PathBuf, config: Option<ParserConfig>) {
         let config = match config {
             Some(config) => config,
             _ => ParserConfig {
+                legacy_ie: true,
                 ..Default::default()
             },
         };
@@ -551,8 +552,20 @@ fn stylesheet_span_visualizer(input: PathBuf, config: Option<ParserConfig>) {
 
 #[testing::fixture("tests/fixture/**/input.css")]
 fn pass(input: PathBuf) {
-    stylesheet_test(input.clone(), Default::default());
-    stylesheet_test_tokens(input, Default::default());
+    stylesheet_test(
+        input.clone(),
+        ParserConfig {
+            legacy_ie: true,
+            ..Default::default()
+        },
+    );
+    stylesheet_test_tokens(
+        input,
+        ParserConfig {
+            legacy_ie: true,
+            ..Default::default()
+        },
+    );
 }
 
 #[testing::fixture("tests/line-comment/**/input.css")]