diff --git a/Changelog b/Changelog
index 27fb1b9d41..058ba375d5 100644
--- a/Changelog
+++ b/Changelog
@@ -2,6 +2,7 @@ Entries are sorted chronologically from oldest to youngest within each release,
 releases are sorted from youngest to oldest.
 
 version 3.1.6:
+- configure: check for strtoull on msvc
 - http: move chunk handling from http_read_stream() to http_buf_read().
 - http: make length/offset-related variables unsigned.
 - ffserver: Check chunk size
diff --git a/configure b/configure
index 12158dd9c2..5eb11e4421 100755
--- a/configure
+++ b/configure
@@ -6197,6 +6197,7 @@ __declspec($_restrict) void* foo(int);
 EOF
     fi
     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
+    check_func strtoull || add_cflags -Dstrtoull=_strtoui64
 fi
 
 for pfx in "" host_; do