diff --git a/include/webassets.hpp b/include/webassets.hpp
index 9ac2abd..d465ca0 100644
--- a/include/webassets.hpp
+++ b/include/webassets.hpp
@@ -166,6 +166,13 @@
         extension = webpath.extension().string();
         file.contentEncoding = "gzip";
     }
+    else if (extension == ".zstd")
+    {
+        webpath = webpath.replace_extension("");
+        // Use the non-zstd version for determining content type
+        extension = webpath.extension().string();
+        file.contentEncoding = "zstd";
+    }
 
     file.etag = getStaticEtag(webpath);