diff --git a/terraform/common/fetch-image/main.tf b/terraform/common/fetch-image/main.tf
index 082e910ddc4..285589a7429 100644
--- a/terraform/common/fetch-image/main.tf
+++ b/terraform/common/fetch-image/main.tf
@@ -5,6 +5,11 @@ locals {
   fetch_image_command = <<EOT
     curl -s https://cdn.confidential.cloud/constellation/v2/${local.image_ref}/image/info.json | \
     ./yq eval '.list[] | select(.csp == "${var.csp}" and .attestationVariant == "${var.attestation_variant}"${local.region_filter}) | .reference' - | tr -d '\n' > "image.txt"
+    if [ ${var.csp} == 'azure' ]; then
+      mv image.txt image.txt.tmp
+      tr '[:upper:]' '[:lower:]' < image.txt.tmp > image.txt
+      rm image.txt.tmp
+    fi
   EOT
 }