diff --git a/utils/ls-iommu b/utils/ls-iommu
index d56bb52..857059f 100755
--- a/utils/ls-iommu
+++ b/utils/ls-iommu
@@ -3,6 +3,6 @@
 # Originally from here: https://forum.level1techs.com/t/ubuntu-17-04-vfio-pcie-passthrough-kernel-update-4-14-rc1/119639
 for d in /sys/kernel/iommu_groups/*/devices/*; do
   n=${d#*/iommu_groups/*}; n=${n%%/*}
-  printf 'IOMMU Group %s ' "$n"
+  printf 'IOMMU Group %s: ' "$n"
   lspci -nns "${d##*/}"
 done
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