diff --git a/build.sbt b/build.sbt
index a0e109a4a..a077de6d0 100644
--- a/build.sbt
+++ b/build.sbt
@@ -91,7 +91,7 @@ val root = (project in file(".")).
     },
     // Used to have "openjdk-8-jdk" but that doesn't work on Ubuntu 14.04 https://github.com/sbt/sbt/issues/3105
     // before that we had java6-runtime-headless" and that was pulling in JDK9 on Ubuntu 16.04 https://github.com/sbt/sbt/issues/2931
-    debianPackageDependencies in Debian ++= Seq("bash (>= 3.2)"),
+    debianPackageDependencies in Debian ++= Seq("bash (>= 3.2)", "bc"),
     debianPackageRecommends in Debian += "git",
     linuxPackageMappings in Debian += {
       val bd = sourceDirectory.value