diff --git a/pr_agent/settings/pr_description_prompts.toml b/pr_agent/settings/pr_description_prompts.toml
index be4f70a0..2b0664b9 100644
--- a/pr_agent/settings/pr_description_prompts.toml
+++ b/pr_agent/settings/pr_description_prompts.toml
@@ -44,7 +44,7 @@ Class FileDescription(BaseModel):
 {%- endif %}
 
 Class PRDescription(BaseModel):
-    type: List[PRType] = Field(description="one or more types that describe the PR content. Return the label value, not the name.")
+    type: List[PRType] = Field(description="one or more types that describe the PR content. Return the label member value (e.g. 'Bug fix', not 'bug_fix')")
 {%- if enable_semantic_files_types %}
     pr_files[List[FileDescription]] = Field(max_items=15, description="a list of the files in the PR, and their changes summary.")
 {%- endif %}