diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index f9993948c4..154d769a29 100755
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -23,6 +23,7 @@ packages:
 - "autoconf"
 - "libtool"
 - "automake"
+- "cmake"
 - "faketime"
 - "bsdmainutils"
 - "ca-certificates"
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index 1fc5afa183..91aba2d58b 100755
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -13,6 +13,7 @@ packages:
 - "autoconf"
 - "libtool"
 - "automake"
+- "cmake"
 - "faketime"
 - "bsdmainutils"
 - "mingw-w64"