diff --git a/tests/docker/dockerfiles/debian-riscv64-cross.docker b/tests/docker/dockerfiles/debian-riscv64-cross.docker
index 9715791e0b..3daf93968a 100644
--- a/tests/docker/dockerfiles/debian-riscv64-cross.docker
+++ b/tests/docker/dockerfiles/debian-riscv64-cross.docker
@@ -42,6 +42,7 @@ RUN apt update && \
     apt install -y --no-install-recommends \
          gcc-riscv64-linux-gnu \
          libc6-dev-riscv64-cross \
+         libfdt-dev:riscv64 \
          libffi-dev:riscv64 \
          libglib2.0-dev:riscv64 \
          libpixman-1-dev:riscv64
diff --git a/tests/docker/dockerfiles/fedora-i386-cross.docker b/tests/docker/dockerfiles/fedora-i386-cross.docker
index 7eec648d2d..f58b64dc3e 100644
--- a/tests/docker/dockerfiles/fedora-i386-cross.docker
+++ b/tests/docker/dockerfiles/fedora-i386-cross.docker
@@ -9,6 +9,7 @@ ENV PACKAGES \
     findutils \
     gcc \
     git \
+    libfdt-devel.i686 \
     libffi-devel.i686 \
     libselinux-devel.i686 \
     libtasn1-devel.i686 \