diff --git a/src/common/webrequest_curl.cpp b/src/common/webrequest_curl.cpp
index e9e2a135f3..e6e47e567c 100644
--- a/src/common/webrequest_curl.cpp
+++ b/src/common/webrequest_curl.cpp
@@ -37,6 +37,11 @@
     #define wxCURL_HAVE_MULTI_WAIT 0
 #endif
 
+// The new name was introduced in curl 7.21.6.
+#ifndef CURLOPT_ACCEPT_ENCODING
+    #define CURLOPT_ACCEPT_ENCODING CURLOPT_ENCODING
+#endif
+
 //
 // wxWebResponseCURL
 //