diff --git a/tools/test-case-generators/format-request-map.json b/tools/test-case-generators/format-request-map.json
index 33804e362..709b07527 100644
--- a/tools/test-case-generators/format-request-map.json
+++ b/tools/test-case-generators/format-request-map.json
@@ -69,7 +69,8 @@
         }
       }
     },
-    "overrides": {}
+    "overrides": {},
+    "supported_arches": ["x86_64"]
   },
   "rhel-edge-commit": {
     "compose-request": {
@@ -108,7 +109,8 @@
         }
       }
     },
-    "overrides": {}
+    "overrides": {},
+    "supported_arches": ["x86_64"]
   },
   "fedora-iot-commit": {
     "compose-request": {
diff --git a/tools/test-case-generators/generate-test-cases b/tools/test-case-generators/generate-test-cases
index dd1e41af8..85f069250 100755
--- a/tools/test-case-generators/generate-test-cases
+++ b/tools/test-case-generators/generate-test-cases
@@ -242,6 +242,11 @@ def main(distro, arch, image_types, keep_image_info, store, output, with_customi
         if filtered_request["compose-request"]["image-type"] not in image_types:
                 continue
         filtered_request["compose-request"]["distro"] = distro
+        # if the compose-request has specified supported arches, then generate
+        # the test case only if the requested arch is in the list
+        supported_arches = filtered_request.get("supported_arches")
+        if supported_arches is not None and arch not in supported_arches:
+            continue
         filtered_request["compose-request"]["arch"] = arch
         filtered_request["compose-request"]["repositories"] = repos_dict[distro][arch]