diff --git a/docker/Dockerfile b/docker/Dockerfile
index 76029e73e59b934d9a79120a227a914b6e81499f..ec5a420b47cdf07e2c4821220cf84d78133eb73c 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -55,7 +55,7 @@ RUN cd ${SRC_FOLDER} && \
              -DENABLE_INFO=0 && \
     make -j ${CPUS_FOR_MAKE} && \
     wget https://files.wwpdb.org/pub/pdb/data/monomers/components.cif.gz && \
-    stage/bin/chemdict_tool create components.cif.gz compounds.chemlib pdb && stage/bin/chemdict_tool update ../modules/conop/data/charmm.cif compounds.chemlib charmm && \
+    stage/bin/chemdict_tool create components.cif.gz compounds.chemlib pdb -i && stage/bin/chemdict_tool update ../modules/conop/data/charmm.cif compounds.chemlib charmm && \
     cmake .. -DCOMPOUND_LIB=${SRC_FOLDER}/openstructure-${OPENSTRUCTURE_VERSION}/build/compounds.chemlib && \
              make -j ${CPUS_FOR_MAKE} && make check && make install && \
     rm ${SRC_FOLDER}/openstructure-${OPENSTRUCTURE_VERSION}.tar.gz && \