diff --git a/tests/docker/dockerfiles/debian10.docker b/tests/docker/dockerfiles/debian10.docker
index 5de79ae552..2fcdc406e8 100644
--- a/tests/docker/dockerfiles/debian10.docker
+++ b/tests/docker/dockerfiles/debian10.docker
@@ -17,14 +17,17 @@ RUN apt update && \
     DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
     DEBIAN_FRONTEND=noninteractive eatmydata \
     apt install -y --no-install-recommends \
+        bc \
         bison \
         build-essential \
         ca-certificates \
         clang \
         dbus \
         flex \
+        gdb-multiarch \
         gettext \
         git \
+        libncurses5-dev \
         pkg-config \
         psmisc \
         python3 \
diff --git a/tests/docker/dockerfiles/debian9.docker b/tests/docker/dockerfiles/debian9.docker
index 8cbd742bb5..92edbbf0f4 100644
--- a/tests/docker/dockerfiles/debian9.docker
+++ b/tests/docker/dockerfiles/debian9.docker
@@ -17,13 +17,16 @@ RUN apt update && \
     DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
     DEBIAN_FRONTEND=noninteractive eatmydata \
     apt install -y --no-install-recommends \
+        bc \
         bison \
         build-essential \
         ca-certificates \
         clang \
         flex \
+        gdb-multiarch \
         gettext \
         git \
+        libncurses5-dev \
         pkg-config \
         psmisc \
         python3 \