diff --git a/build/amd64-ubuntu-builder.dockerfile b/build/amd64-ubuntu-builder.dockerfile
index c28d356..ddfe61a 100644
--- a/build/amd64-ubuntu-builder.dockerfile
+++ b/build/amd64-ubuntu-builder.dockerfile
@@ -15,6 +15,7 @@ RUN set -x \
        gdb \
        gdbserver \
        valgrind \
+       lcov \
        uuid-dev
 
 COPY src /usr/local/src
diff --git a/build/arm32v7-ubuntu-builder.dockerfile b/build/arm32v7-ubuntu-builder.dockerfile
index 5c6ad41..77ce038 100644
--- a/build/arm32v7-ubuntu-builder.dockerfile
+++ b/build/arm32v7-ubuntu-builder.dockerfile
@@ -18,6 +18,7 @@ RUN set -x \
        rsync \
        gdb \
        gdbserver \
+       lcov \
        uuid-dev
 
 COPY src /usr/local/src