diff --git a/CHANGELOG.md b/CHANGELOG.md
index f886c899913b90ded4e0454de4c3be35b19464b4..cbd60aba6753644561c4c1894c1506aaa295be67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 <!-- Keep a Changelog guide -> https://keepachangelog.com -->
 
 # Solon Changelog
+## [0.0.3-M1]
+### Added
+- [Feature] support yml key hint
+- [Feature] Optimization of yaml support
+
 ## [0.0.2-M1]
 ### Added
 - [Feature] support yml key hint
diff --git a/gradle.properties b/gradle.properties
index fd7e6f461aa47cceac4e02d1984a8a0c67dc7d88..4f36225daf190ce1ca0f6bd4eecfbeb23a736ed3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,7 +5,7 @@ pluginName = Solon
 pluginRepositoryUrl = https://gitee.com/noear/solon-idea-plugin
 # SemVer format -> https://semver.org
 
-pluginVersion = 0.0.2-M1
+pluginVersion = 0.0.3-M1
 
 # Supported build number ranges and IntelliJ Platform versions -> https://plugins.jetbrains.com/docs/intellij/build-number-ranges.html
 pluginSinceBuild = 213
diff --git a/src/main/java/org/noear/solon/idea/plugin/suggestion/service/SuggestionServiceImpl.java b/src/main/java/org/noear/solon/idea/plugin/suggestion/service/SuggestionServiceImpl.java
index 68455308abe8a8b963f9fbd1abee13c4b80a80b7..22ed7a7ebd972013d618571b138c9f0246a38b1c 100644
--- a/src/main/java/org/noear/solon/idea/plugin/suggestion/service/SuggestionServiceImpl.java
+++ b/src/main/java/org/noear/solon/idea/plugin/suggestion/service/SuggestionServiceImpl.java
@@ -212,8 +212,10 @@ public class SuggestionServiceImpl implements SuggestionService {
                 Document document = editor.getDocument();
                 String text = item.getLookupString();
                 boolean lastDot=queryWithDotDelimitedPrefixes.length() == queryWithDotDelimitedPrefixes.lastIndexOf(".") + 1;
+                boolean queryNotEmpty = queryWithDotDelimitedPrefixes.length() > 1;
+                int queryLength = queryNotEmpty ? (queryWithDotDelimitedPrefixes.length() - 1) : queryWithDotDelimitedPrefixes.length();
                 String query = lastDot?
-                        queryWithDotDelimitedPrefixes.substring(0, queryWithDotDelimitedPrefixes.length() - 1) : queryWithDotDelimitedPrefixes;
+                        queryWithDotDelimitedPrefixes.substring(0, queryLength) : queryWithDotDelimitedPrefixes;
                 String supplementText = text.substring(lastDot?query.length():query.length()-1);
                 supplementText=supplementText.indexOf(".")==0?supplementText.substring(1):supplementText;
                 String[] count = supplementText.split(DELIMITER);