diff --git a/build.xml b/build.xml
index 0a29121..210e4ae 100644
--- a/build.xml
+++ b/build.xml
@@ -175,8 +175,8 @@
           </fileset>
           <filterchain>
             <replaceregexp>
-              <regexp pattern="\bnamespace\s+WebSharks\\Core(?:\\[^\\]+)?\\Classes\b" replace="namespace WebSharks\Core\${project_sns}\Classes" />
-              <regexp pattern="\bnamespace\s+WebSharks\\Core(?:\\[^\\]+)?\\Traits\b" replace="namespace WebSharks\Core\${project_sns}\Traits" />
+              <regexp pattern="\bnamespace\s+WebSharks\\Core(?:\\[^\\]+)?\\Classes\b" replace="namespace WebSharks\\Core\\${project_sns}\\Classes" />
+              <regexp pattern="\bnamespace\s+WebSharks\\Core(?:\\[^\\]+)?\\Traits\b" replace="namespace WebSharks\\Core\\${project_sns}\\Traits" />
             </replaceregexp>
           </filterchain>
         </reflexive>
@@ -186,8 +186,8 @@
           </fileset>
           <filterchain>
             <replaceregexp>
-              <regexp pattern="\bWebSharks\\\\Core(?:\\\\[^\\]+)?\\\\Classes\b" replace="WebSharks\\Core\\${project_sns}\\Classes" />
-              <regexp pattern="\bWebSharks\\\\Core(?:\\\\[^\\]+)?\\\\Traits\b" replace="WebSharks\\Core\\${project_sns}\\Traits" />
+              <regexp pattern="\bWebSharks\\\\Core(?:\\\\[^\\]+)?\\\\Classes\b" replace="WebSharks\\\\Core\\\\${project_sns}\\\\Classes" />
+              <regexp pattern="\bWebSharks\\\\Core(?:\\\\[^\\]+)?\\\\Traits\b" replace="WebSharks\\\\Core\\\\${project_sns}\\\\Traits" />
             </replaceregexp>
           </filterchain>
         </reflexive>
@@ -208,8 +208,8 @@
           </fileset>
           <filterchain>
             <replaceregexp>
-              <regexp pattern="\bnamespace\s+WebSharks\\WpCore(?:\\[^\\]+)?\\Classes\b" replace="namespace WebSharks\WpCore\${project_sns}\Classes" />
-              <regexp pattern="\bnamespace\s+WebSharks\\WpCore(?:\\[^\\]+)?\\Traits\b" replace="namespace WebSharks\WpCore\${project_sns}\Traits" />
+              <regexp pattern="\bnamespace\s+WebSharks\\WpCore(?:\\[^\\]+)?\\Classes\b" replace="namespace WebSharks\\WpCore\\${project_sns}\\Classes" />
+              <regexp pattern="\bnamespace\s+WebSharks\\WpCore(?:\\[^\\]+)?\\Traits\b" replace="namespace WebSharks\\WpCore\\${project_sns}\\Traits" />
             </replaceregexp>
           </filterchain>
         </reflexive>
@@ -219,8 +219,8 @@
           </fileset>
           <filterchain>
             <replaceregexp>
-              <regexp pattern="\bWebSharks\\\\WpCore(?:\\\\[^\\]+)?\\\\Classes\b" replace="WebSharks\\WpCore\\${project_sns}\\Classes" />
-              <regexp pattern="\bWebSharks\\\\WpCore(?:\\\\[^\\]+)?\\\\Traits\b" replace="WebSharks\\WpCore\\${project_sns}\\Traits" />
+              <regexp pattern="\bWebSharks\\\\WpCore(?:\\\\[^\\]+)?\\\\Classes\b" replace="WebSharks\\\\WpCore\\\\${project_sns}\\\\Classes" />
+              <regexp pattern="\bWebSharks\\\\WpCore(?:\\\\[^\\]+)?\\\\Traits\b" replace="WebSharks\\\\WpCore\\\\${project_sns}\\\\Traits" />
             </replaceregexp>
           </filterchain>
         </reflexive>