diff --git a/docker-c8/Dockerfile b/docker-c8/Dockerfile
index 3d71a06..ede7c70 100644
--- a/docker-c8/Dockerfile
+++ b/docker-c8/Dockerfile
@@ -14,7 +14,8 @@ RUN dnf -y install \
     quota \
     attr \
     tcsh \
-    numactl
+    numactl \
+    bc
 
 # Create all possible pool accounts
 RUN curl -s https://raw.githubusercontent.com/stfc/grid-workernode/master/resources/pool_accounts/create.sh | bash -
diff --git a/docker-c9/Dockerfile b/docker-c9/Dockerfile
index 6ba33ba..e4195e0 100644
--- a/docker-c9/Dockerfile
+++ b/docker-c9/Dockerfile
@@ -14,7 +14,8 @@ RUN dnf -y install \
     quota \
     attr \
     tcsh \
-    numactl
+    numactl \
+    bc
 
 # Create all possible pool accounts
 RUN curl -s https://raw.githubusercontent.com/stfc/grid-workernode/master/resources/pool_accounts/create.sh | bash -