diff --git a/src/flb_http_client.c b/src/flb_http_client.c
index 54113fd4bcf..5ebad88231a 100644
--- a/src/flb_http_client.c
+++ b/src/flb_http_client.c
@@ -45,6 +45,8 @@
 #include <fluent-bit/flb_base64.h>
 #include <fluent-bit/tls/flb_tls.h>
 #include <fluent-bit/flb_signv4_ng.h>
+#include <fluent-bit/flb_config_map.h>
+#include <fluent-bit/flb_upstream_ha.h>
 
 void flb_http_client_debug(struct flb_http_client *c,
                            struct flb_callback *cb_ctx)