diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake
index 9c78586133..20587123dc 100644
--- a/lib/curl_config.h.cmake
+++ b/lib/curl_config.h.cmake
@@ -448,6 +448,9 @@
 /* Define to 1 if you have the sigsetjmp function or macro. */
 #cmakedefine HAVE_SIGSETJMP 1
 
+/* Define to 1 if you have the `snprintf' function. */
+#cmakedefine HAVE_SNPRINTF
+
 /* Define to 1 if struct sockaddr_in6 has the sin6_scope_id member */
 #cmakedefine HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1