diff --git a/AMBuildScript b/AMBuildScript
index 5bcaf992d..55924af98 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -671,7 +671,7 @@ else:
     #'extensions/geoip/AMBuilder',
     #'extensions/mysql/AMBuilder',
     'extensions/pgsql/AMBuilder',
-    #'extensions/regex/AMBuilder',
+    'extensions/regex/AMBuilder',
     #'extensions/sdkhooks/AMBuilder',
     #'extensions/sdktools/AMBuilder',
     'extensions/sqlite/AMBuilder',
diff --git a/extensions/regex/extension.cpp b/extensions/regex/extension.cpp
index 0483dba5b..bf082f477 100644
--- a/extensions/regex/extension.cpp
+++ b/extensions/regex/extension.cpp
@@ -31,11 +31,10 @@
 
 #include <sourcemod_version.h>
 #include "extension.h"
-#include <sh_string.h>
+#include <string>
 #include "pcre.h"
 #include "posix_map.h"
 #include "CRegEx.h"
-using namespace SourceHook;
 
 /**
  * @file extension.cpp