diff --git a/for_build/annote_and_1tree/Dockerfile b/for_build/annote_and_1tree/Dockerfile
index 9418190537460cec9a9d2668c6fd8e6997d0c368..b57e7eade2d95e5a5ea3c666f09280e4d300a9c0 100644
--- a/for_build/annote_and_1tree/Dockerfile
+++ b/for_build/annote_and_1tree/Dockerfile
@@ -22,7 +22,7 @@ RUN wget ftp://ftp.ncbi.nlm.nih.gov/blast/executables/blast+/2.10.1/ncbi-blast-2
     rm ncbi-blast-2.10.1+-x64-linux.tar.gz
 
 
-# Install prokka:
+# Install dependencies for prokka:
 WORKDIR /install_dir
 RUN DEBIAN_FRONTEND="noninteractive" apt install -y\
         libdatetime-perl \
@@ -31,12 +31,22 @@ RUN DEBIAN_FRONTEND="noninteractive" apt install -y\
         hmmer \
         default-jre \
         bioperl
+# Install hmmer
 RUN echo yes | cpan Bio::SearchIO::hmmer
+# Install bioperl
 RUN echo yes | cpan Bio::Perl
+# install tbl2asn
+RUN wget -O tbl2asn.gz ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools/converters/by_program/tbl2asn/linux.tbl2asn.gz &&\
+    gunzip tbl2asn.gz &&\
+    chmod +x tbl2asn &&\
+    ln -s /install_dir/tbl2asn /usr/local/bin
+
+# Install prokka
 RUN git clone https://github.com/tseemann/prokka.git
 RUN /install_dir/prokka/bin/prokka --setupdb &&\
     ln -s /install_dir/prokka/bin/prokka /usr/local/bin
 
+
 RUN rm /usr/bin/mafft  # remove mafft installed with bioperl
 
 # Install quicktree