diff --git a/config.make b/config.make
index b44281a..a7cce9f 100644
--- a/config.make
+++ b/config.make
@@ -3,7 +3,7 @@ cat << END >> $NGX_MAKEFILE
 modules: ngx_otel_module
 
 ngx_otel_module:
-	make -C $NGX_OBJS/otel
+	\$(MAKE) -C $NGX_OBJS/otel
 
 .PHONY: ngx_otel_module