diff --git a/liteflow-ai/liteflow-ai-core/src/main/java/com/yomahub/liteflow/ai/parse/prompt/resource/impl/TextPromptResource.java b/liteflow-ai/liteflow-ai-core/src/main/java/com/yomahub/liteflow/ai/parse/prompt/resource/impl/TextPromptResource.java
index 0e49d7b77..dea4d241c 100644
--- a/liteflow-ai/liteflow-ai-core/src/main/java/com/yomahub/liteflow/ai/parse/prompt/resource/impl/TextPromptResource.java
+++ b/liteflow-ai/liteflow-ai-core/src/main/java/com/yomahub/liteflow/ai/parse/prompt/resource/impl/TextPromptResource.java
@@ -57,7 +57,7 @@ public class TextPromptResource extends AbstractPromptResource {
         return Optional
                 .ofNullable(location)
                 .filter(s -> s.startsWith(prefix))
-                .map(s -> s.startsWith(prefix) ? s.substring(prefix.length()) : s)
-                .orElse("");
+                .map(s -> s.substring(prefix.length()))
+                .orElse(location);
     }
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/java/com/yomahub/liteflow/test/cmp/AICmp.java b/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/java/com/yomahub/liteflow/test/cmp/AICmp.java
index d40fc7274..396074ad3 100644
--- a/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/java/com/yomahub/liteflow/test/cmp/AICmp.java
+++ b/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/java/com/yomahub/liteflow/test/cmp/AICmp.java
@@ -2,6 +2,8 @@ package com.yomahub.liteflow.test.cmp;
 
 import com.yomahub.liteflow.ai.annotation.AIChat;
 import com.yomahub.liteflow.ai.annotation.AIComponent;
+import com.yomahub.liteflow.ai.annotation.AIInput;
+import com.yomahub.liteflow.ai.annotation.InputField;
 
 /**
  * TODO
@@ -18,7 +20,14 @@ import com.yomahub.liteflow.ai.annotation.AIComponent;
         model = "qwen3:32b"
 )
 @AIChat(
-        userPrompt = "Why sky is blue?"
+        systemPrompt = "classpath:system_prompt.txt",
+        userPrompt = "{{question}}, {{answer}}"
+)
+@AIInput(
+        mapping = {
+                @InputField(name = "question",  expression = "test", defaultValue = "Why sky is blue?"),
+                @InputField(name = "answer", expression = "test", defaultValue = "The sky appears blue due to the scattering of sunlight by the atmosphere.")
+        }
 )
 public interface AICmp {
 }
diff --git a/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/resources/system_prompt.txt b/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/resources/system_prompt.txt
new file mode 100644
index 000000000..0f21b0356
--- /dev/null
+++ b/liteflow-testcase-el/liteflow-testcase-el-ai/src/test/resources/system_prompt.txt
@@ -0,0 +1 @@
+You are a chatbot that helps users with their questions about the LiteFlow framework.
\ No newline at end of file