Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 tests/docker/dockerfiles/debian9.docker | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/docker/dockerfiles/debian9.docker b/tests/docker/dockerfiles/debian9.docker
index c74f71283c..51c13939ff 100644
--- a/tests/docker/dockerfiles/debian9.docker
+++ b/tests/docker/dockerfiles/debian9.docker
@@ -22,4 +22,6 @@ RUN DEBIAN_FRONTEND=noninteractive eatmydata \
         ca-certificates \
         clang \
         flex \
-        git
+        git \
+        pkg-config \
+        python-minimal
-- 
2.13.2