diff --git a/src/event_source.rs b/src/event_source.rs
index a18ee1a..f6e7ce1 100644
--- a/src/event_source.rs
+++ b/src/event_source.rs
@@ -134,7 +134,19 @@ fn check_response(response: Response) -> Result<Response, Error> {
     if content_type
         .to_str()
         .map_err(|_| ())
-        .and_then(|s| s.parse::<mime::Mime>().map_err(|_| ()))
+        .and_then(|s| {
+            s.parse::<mime::Mime>()
+                .map_err(|_| (()))
+                // Fallback to content type without parameters.
+                .or_else(|_| match s.contains(";") {
+                    true => s
+                        .split(';')
+                        .next()
+                        .map(|s| s.parse::<mime::Mime>().map_err(|_| (())))
+                        .unwrap(),
+                    false => Err(()),
+                })
+        })
         .map(|mime_type| {
             matches!(
                 (mime_type.type_(), mime_type.subtype()),