diff --git a/Dockerfile.debian b/Dockerfile.debian
index 3746c76b..4b8f0596 100644
--- a/Dockerfile.debian
+++ b/Dockerfile.debian
@@ -26,6 +26,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   make \
   pkg-config \
   python3-dev \
+  python-dev-is-python3 \
   libsqlite3-dev
 
 RUN mkdir -p /usr/src/{stabber,libmesode,profanity}