diff --git a/.github/workflows/cloud-ci.yml b/.github/workflows/cloud-ci.yml
index 8fb9b0e7a..852f5704a 100644
--- a/.github/workflows/cloud-ci.yml
+++ b/.github/workflows/cloud-ci.yml
@@ -99,12 +99,12 @@ jobs:
           case "$nodes" in
             "1n")
               MILABENCH_SYSTEM="config/cloud-system.yaml"
-              EXCLUDE="$EXCLUDE,$_MULTI_NODES"
+              EXCLUDE="$EXCLUDE,$_MULTI_NODES,diffusion-single"
               ;;
             "2n")
               MILABENCH_SYSTEM="config/cloud-multinodes-system.yaml"
               SELECT="$SELECT,$_MULTI_NODES"
-              EXCLUDE="$EXCLUDE,$_MULTI_GPUS"
+              EXCLUDE="$EXCLUDE,$_MULTI_GPUS,diffusion-single"
               ;;
             *)
               exit 1