diff --git a/ci/Dockerfile-mingw b/ci/Dockerfile-mingw
index ee5926c8d..c653e7e00 100644
--- a/ci/Dockerfile-mingw
+++ b/ci/Dockerfile-mingw
@@ -3,4 +3,5 @@ FROM ubuntu:16.04
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc ca-certificates make libc6-dev \
-  gcc-mingw-w64-x86-64 libz-mingw-w64-dev
+  gcc-mingw-w64-x86-64 libz-mingw-w64-dev \
+  cmake