diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java b/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java
index cb4455a11..7d89d3443 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/parser/FlowParser.java
@@ -2,7 +2,6 @@ package com.yomahub.liteflow.parser;
 
 import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.util.ArrayUtil;
-import cn.hutool.core.util.StrUtil;
 import com.yomahub.liteflow.entity.flow.Condition;
 import com.yomahub.liteflow.entity.flow.ThenCondition;
 import com.yomahub.liteflow.entity.flow.WhenCondition;
@@ -10,6 +9,8 @@ import com.yomahub.liteflow.enums.ConditionTypeEnum;
 import com.yomahub.liteflow.exception.ConfigErrorException;
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import org.springframework.util.Assert;
+import org.springframework.util.ResourceUtils;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -73,7 +74,11 @@ public abstract class FlowParser {
      * @throws IOException
      */
     protected Resource[] matchRuleResources(final String ruleSource)  throws IOException {
-        final String locationPattern = StrUtil.format("classpath:{}",ruleSource);
+        Assert.notNull(ruleSource, "rule source must not be null");
+        String locationPattern = ruleSource;
+        if (!locationPattern.startsWith(ResourceUtils.CLASSPATH_URL_PREFIX)) {
+            locationPattern = ResourceUtils.CLASSPATH_URL_PREFIX + locationPattern;
+        }
         PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
         Resource[] resources = resolver.getResources(locationPattern);
         if(ArrayUtil.isEmpty(resources)) {