diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index 43612d4b36..5845d8fd89 100644
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -1,6 +1,7 @@
 ---
 name: "bitcoin-core-linux-0.19"
 enable_cache: true
+distro: "ubuntu"
 suites:
 - "bionic"
 architectures:
diff --git a/contrib/gitian-descriptors/gitian-osx-signer.yml b/contrib/gitian-descriptors/gitian-osx-signer.yml
index df6cddbf03..4cfca403b1 100644
--- a/contrib/gitian-descriptors/gitian-osx-signer.yml
+++ b/contrib/gitian-descriptors/gitian-osx-signer.yml
@@ -1,5 +1,6 @@
 ---
 name: "bitcoin-dmg-signer"
+distro: "ubuntu"
 suites:
 - "bionic"
 architectures:
diff --git a/contrib/gitian-descriptors/gitian-osx.yml b/contrib/gitian-descriptors/gitian-osx.yml
index 2d18d0a359..24292d089a 100644
--- a/contrib/gitian-descriptors/gitian-osx.yml
+++ b/contrib/gitian-descriptors/gitian-osx.yml
@@ -1,6 +1,7 @@
 ---
 name: "bitcoin-core-osx-0.19"
 enable_cache: true
+distro: "ubuntu"
 suites:
 - "bionic"
 architectures:
diff --git a/contrib/gitian-descriptors/gitian-win-signer.yml b/contrib/gitian-descriptors/gitian-win-signer.yml
index 08d20177a6..656c6d9b7a 100644
--- a/contrib/gitian-descriptors/gitian-win-signer.yml
+++ b/contrib/gitian-descriptors/gitian-win-signer.yml
@@ -1,5 +1,6 @@
 ---
 name: "bitcoin-win-signer"
+distro: "ubuntu"
 suites:
 - "bionic"
 architectures:
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index b805929035..eca32a5dc5 100644
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -1,6 +1,7 @@
 ---
 name: "bitcoin-core-win-0.19"
 enable_cache: true
+distro: "ubuntu"
 suites:
 - "bionic"
 architectures: