diff --git a/code/nel/src/gui/curl_certificates.cpp b/code/nel/src/gui/curl_certificates.cpp
index fa3cd10f0..34a989287 100644
--- a/code/nel/src/gui/curl_certificates.cpp
+++ b/code/nel/src/gui/curl_certificates.cpp
@@ -86,7 +86,7 @@ namespace NLGUI
 
 			CURLINFO info;
 
-#if CURL_AT_LEAST_VERSION(7, 48, 0)
+#if defined(CURL_AT_LEAST_VERSION) && CURL_AT_LEAST_VERSION(7, 48, 0)
 			info = CURLINFO_TLS_SSL_PTR;
 #else
 			info = CURLINFO_TLS_SESSION;