diff --git a/labs/config/config.compute b/labs/config/config.compute
index 6b8cd02e..eaf6ec47 100644
--- a/labs/config/config.compute
+++ b/labs/config/config.compute
@@ -11,5 +11,8 @@ NET_IF_0=nat
 NET_IF_1=MGMT_NET
 NET_IF_2=DATA_NET
 
+# A default instance within compute uses 512 MB RAM
+VM_MEM=1024
+
 # Override number of virtual CPUs (default is 1)
 VM_CPUS=2