diff --git a/docker/Dockerfile.simulated_olt b/docker/Dockerfile.simulated_olt
index d31cf48..9805ac6 100644
--- a/docker/Dockerfile.simulated_olt
+++ b/docker/Dockerfile.simulated_olt
@@ -41,6 +41,7 @@
 COPY vendor ./vendor
 
 # Copy files
+COPY adapters/adapterif ./adapters/adapterif
 COPY adapters/simulated_olt ./adapters/simulated_olt
 COPY adapters/common ./adapters/common
 COPY adapters/*.go ./adapters/