diff --git a/include/common/http.h b/include/common/http.h
index 0835d07..66acfd3 100644
--- a/include/common/http.h
+++ b/include/common/http.h
@@ -119,6 +119,7 @@
 };
 
 extern const int http_err_codes[HTTP_ERR_SIZE];
+extern const char *http_err_msgs[HTTP_ERR_SIZE];
 extern struct buffer http_err_chunks[HTTP_ERR_SIZE];
 const struct ist http_known_methods[HTTP_METH_OTHER];
 extern const uint8_t http_char_classes[256];