diff --git a/build.psm1 b/build.psm1
index 5cea1ce12f..d359775126 100644
--- a/build.psm1
+++ b/build.psm1
@@ -1702,6 +1702,7 @@ function Start-PSBootstrap {
                         $gemsudo = $sudo
                     }
                     Start-NativeExecution ([ScriptBlock]::Create("$gemsudo gem install backports -v 3.15.0 --no-document"))
+                    Start-NativeExecution ([ScriptBlock]::Create("$gemsudo gem install ffi -v 1.12.0 --no-document"))
                     Start-NativeExecution ([ScriptBlock]::Create("$gemsudo gem install fpm -v 1.11.0 --no-document"))
                     Start-NativeExecution ([ScriptBlock]::Create("$gemsudo gem install ronn -v 0.7.3 --no-document"))
                 } catch {