diff --git a/hspace.1 b/hspace.1
index d88982c64fdabad8edb081bbe79469e57e1e8e02..960bc67ecf56371f531619590979dc0e9bc3cb64 100644
--- a/hspace.1
+++ b/hspace.1
@@ -33,6 +33,7 @@ Request options:
 .BI "[--memory " mem "]"
 .BI "[--disk " disk "]"
 .BI "[--req-nodes " req-nodes "]"
+.BI "[--vcpus " vcpus "]"
 
 
 .SH DESCRIPTION
@@ -176,6 +177,10 @@ The disk size of the instances to be placed (defaults to 100GiB).
 The number of nodes for the instances; the default of two means
 mirrored instances, while passing one means plain type instances.
 
+.TP
+.BI "--vcpus " vcpus
+The number of VCPUs of the instances to be placed (defaults to 1).
+
 .TP
 .BI "--max-cpu " cpu-ratio
 The maximum virtual-to-physical cpu ratio, as a floating point number