diff --git a/casbin/casbin.vcxproj b/casbin/casbin.vcxproj
index f11f7cf8..6df54a2e 100644
--- a/casbin/casbin.vcxproj
+++ b/casbin/casbin.vcxproj
@@ -166,7 +166,7 @@
     <ClCompile Include="exception\missing_required_sections.cpp" />
     <ClCompile Include="exception\unsupported_operation_exception.cpp" />
     <ClCompile Include="internal_api.cpp" />
-    <ClCompile Include="ip_parser\exception\ParserException.cpp" />
+    <ClCompile Include="ip_parser\exception\parser_exception.cpp" />
     <ClCompile Include="ip_parser\parser\allFF.cpp" />
     <ClCompile Include="ip_parser\parser\CIDRMask.cpp" />
     <ClCompile Include="ip_parser\parser\dtoi.cpp" />
@@ -241,8 +241,8 @@
     <ClInclude Include="exception\missing_required_sections.h" />
     <ClInclude Include="exception\pch.h" />
     <ClInclude Include="exception\unsupported_operation_exception.h" />
-    <ClInclude Include="ip_parser\exceptions\ParserException.h" />
-    <ClInclude Include="ip_parser\exceptions\pch.h" />
+    <ClInclude Include="ip_parser\exception\parser_exception.h" />
+    <ClInclude Include="ip_parser\exception\pch.h" />
     <ClInclude Include="ip_parser\parser\allFF.h" />
     <ClInclude Include="ip_parser\parser\byte.h" />
     <ClInclude Include="ip_parser\parser\CIDR.h" />
diff --git a/casbin/casbin.vcxproj.filters b/casbin/casbin.vcxproj.filters
index 88a6a79d..997ddf31 100644
--- a/casbin/casbin.vcxproj.filters
+++ b/casbin/casbin.vcxproj.filters
@@ -67,7 +67,7 @@
     <Filter Include="Source Files\ip_parser\parser">
       <UniqueIdentifier>{deb02d53-9580-4fb9-b666-6b3a2713d286}</UniqueIdentifier>
     </Filter>
-    <Filter Include="Source Files\ip_parser\exceptions">
+    <Filter Include="Source Files\ip_parser\exception">
       <UniqueIdentifier>{c1a83ec0-b3e2-4b46-9755-6e20d8f26356}</UniqueIdentifier>
     </Filter>
     <Filter Include="Source Files\persist">
@@ -243,9 +243,6 @@
     <ClCompile Include="rbac_api_with_domains.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="ip_parser\exception\ParserException.cpp">
-      <Filter>Source Files\ip_parser\exceptions</Filter>
-    </ClCompile>
     <ClCompile Include="ip_parser\parser\parseIPv4.cpp">
       <Filter>Source Files\ip_parser\parser</Filter>
     </ClCompile>
@@ -255,6 +252,9 @@
     <ClCompile Include="enforcer_cached.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="ip_parser\exception\parser_exception.cpp">
+      <Filter>Source Files\ip_parser\exception</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="config\config_interface.h">
@@ -347,10 +347,7 @@
     <ClInclude Include="exception\unsupported_operation_exception.h">
       <Filter>Header Files\exception</Filter>
     </ClInclude>
-    <ClInclude Include="ip_parser\exceptions\ParserException.h">
-      <Filter>Header Files\ip_parser\exception</Filter>
-    </ClInclude>
-    <ClInclude Include="ip_parser\exceptions\pch.h">
+    <ClInclude Include="ip_parser\exception\pch.h">
       <Filter>Header Files\ip_parser\exception</Filter>
     </ClInclude>
     <ClInclude Include="ip_parser\parser\allFF.h">
@@ -470,6 +467,9 @@
     <ClInclude Include="enforcer_cached.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="ip_parser\exception\parser_exception.h">
+      <Filter>Header Files\ip_parser\exception</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include=".clang-format" />
diff --git a/casbin/ip_parser/exception/parserException.cpp b/casbin/ip_parser/exception/parser_exception.cpp
similarity index 80%
rename from casbin/ip_parser/exception/parserException.cpp
rename to casbin/ip_parser/exception/parser_exception.cpp
index 032233f7..9e97edf9 100644
--- a/casbin/ip_parser/exception/parserException.cpp
+++ b/casbin/ip_parser/exception/parser_exception.cpp
@@ -2,7 +2,7 @@
 
 #include "pch.h"
 
-#include "./parserException.h"
+#include "./parser_exception.h"
 
 ParserException :: ParserException(string error_message){
     this->error_message = error_message;
diff --git a/casbin/ip_parser/exception/parserException.h b/casbin/ip_parser/exception/parser_exception.h
similarity index 100%
rename from casbin/ip_parser/exception/parserException.h
rename to casbin/ip_parser/exception/parser_exception.h
diff --git a/casbin/ip_parser/parser/parseCIDR.h b/casbin/ip_parser/parser/parseCIDR.h
index 4fef1701..0e33995a 100644
--- a/casbin/ip_parser/parser/parseCIDR.h
+++ b/casbin/ip_parser/parser/parseCIDR.h
@@ -11,7 +11,7 @@
 #include "./parseIPv4.h"
 #include "./parseIPv6.h"
 #include "./CIDRMask.h"
-#include "../exception/parserException.h"
+#include "../exception/parser_exception.h"
 
 CIDR parseCIDR(string s);
 
diff --git a/casbin/log/DefaultLogger.h b/casbin/log/default_logger.h
similarity index 100%
rename from casbin/log/DefaultLogger.h
rename to casbin/log/default_logger.h
diff --git a/casbin/log/LogUtil.h b/casbin/log/log_util.h
similarity index 100%
rename from casbin/log/LogUtil.h
rename to casbin/log/log_util.h