diff --git a/agentplatform/_genai/_evals_common.py b/agentplatform/_genai/_evals_common.py
index f33ceb7497..8bcf41812e 100644
--- a/agentplatform/_genai/_evals_common.py
+++ b/agentplatform/_genai/_evals_common.py
@@ -483,6 +483,7 @@ def _get_default_prompt_template(
                 and eval_item.evaluation_request
                 and eval_item.evaluation_request.prompt
                 and eval_item.evaluation_request.prompt.prompt_template_data
+                and eval_item.evaluation_request.prompt.prompt_template_data.values
             ):
                 if (
                     "prompt"
diff --git a/vertexai/_genai/_evals_common.py b/vertexai/_genai/_evals_common.py
index 4936a60a96..3a63e84f41 100644
--- a/vertexai/_genai/_evals_common.py
+++ b/vertexai/_genai/_evals_common.py
@@ -468,6 +468,7 @@ def _get_default_prompt_template(
                 and eval_item.evaluation_request
                 and eval_item.evaluation_request.prompt
                 and eval_item.evaluation_request.prompt.prompt_template_data
+                and eval_item.evaluation_request.prompt.prompt_template_data.values
             ):
                 if (
                     "prompt"