diff --git a/src/server/kiwix-serve.cpp b/src/server/kiwix-serve.cpp
index d5cdfa9..02e638c 100644
--- a/src/server/kiwix-serve.cpp
+++ b/src/server/kiwix-serve.cpp
@@ -399,7 +399,7 @@ static int accessHandlerCallback(void *cls,
     contentLength > KIWIX_MIN_CONTENT_SIZE_TO_DEFLATE &&
     contentLength < COMPRESSOR_BUFFER_SIZE &&
     acceptEncodingDeflate &&
-    mimeType.find("text/") != string::npos;
+    ( mimeType.find("text/") != string::npos || mimeType == application );
 
   /* Compress the content if necessary */
   if (deflated) {