diff --git a/modules/http/http_request.c b/modules/http/http_request.c
index 88e1434511..ae52cd95d7 100644
--- a/modules/http/http_request.c
+++ b/modules/http/http_request.c
@@ -422,7 +422,9 @@ AP_DECLARE(void) ap_internal_fast_redirect(request_rec *rr, request_rec *r)
     r->args = rr->args;
     r->finfo = rr->finfo;
     r->handler = rr->handler;
-    ap_set_content_type(r, rr->content_type);
+    if (rr->content_type) {
+        ap_set_content_type(r, rr->content_type);
+    }
     r->content_encoding = rr->content_encoding;
     r->content_languages = rr->content_languages;
     r->per_dir_config = rr->per_dir_config;