diff --git a/debian-bullseye/ghdl.dockerfile b/debian-bullseye/ghdl.dockerfile
index 445dd878..f6d86c8a 100644
--- a/debian-bullseye/ghdl.dockerfile
+++ b/debian-bullseye/ghdl.dockerfile
@@ -23,7 +23,7 @@ ARG REGISTRY='gcr.io/hdl-containers/debian/bullseye'
 
 #---
 
-FROM ghdl/pkg:bullseye-mcode AS build-mcode
+FROM docker.io/ghdl/pkg:bullseye-mcode AS build-mcode
 
 # TODO Build GHDL on $REGISTRY/build/build instead of picking ghdl/pkg:bullseye-mcode
 
@@ -35,7 +35,7 @@ COPY --from=build-mcode / /ghdl/usr/local/
 
 #---
 
-FROM ghdl/pkg:bullseye-llvm-11 AS build-llvm
+FROM docker.io/ghdl/pkg:bullseye-llvm-11 AS build-llvm
 
 # TODO Build GHDL on $REGISTRY/build/build instead of picking ghdl/pkg:bullseye-mcode