diff --git a/config/test_val.config.src b/config/test_val.config.src
index d9057fa30..fb9a25dbe 100644
--- a/config/test_val.config.src
+++ b/config/test_val.config.src
@@ -82,7 +82,7 @@
                 listen_opts =>
                     #{
                       port => ${GRPC_PORT:-8080},
-                      ip => {0, 0, 0, 0}
+                      ip => {${GRPC_IP:-0,0,0,0}}
                      },
 
                 pool_opts => #{size => 100},
diff --git a/config/val.config.src b/config/val.config.src
index 045b8411e..5fbab20dc 100644
--- a/config/val.config.src
+++ b/config/val.config.src
@@ -71,7 +71,7 @@
                 listen_opts =>
                     #{
                       port => ${GRPC_PORT:-8080},
-                      ip => {0, 0, 0, 0}
+                      ip => {${GRPC_IP:-0,0,0,0}}
                      },
 
                 pool_opts => #{size => 100},