diff --git a/Dockerfile.cuda b/Dockerfile.cuda
index 52d7a27619..89db9603cf 100644
--- a/Dockerfile.cuda
+++ b/Dockerfile.cuda
@@ -1,5 +1,5 @@
 ARG BASE_IMAGE
-FROM $BASE_IMAGE
+FROM $BASE_IMAGE AS ocrd_core_base
 
 ENV MAMBA_EXE=/usr/local/bin/conda
 ENV MAMBA_ROOT_PREFIX=/conda