diff --git a/components/files/configurationmanager.cpp b/components/files/configurationmanager.cpp
index 951c444a5..46775a7fb 100644
--- a/components/files/configurationmanager.cpp
+++ b/components/files/configurationmanager.cpp
@@ -164,6 +164,10 @@ bool ConfigurationManager::loadConfig(const boost::filesystem::path& path,
     return false;
 }
 
+const int escape_hash_filter::sEscape = '@';
+const int escape_hash_filter::sEscapeIdentifier = 'a';
+const int escape_hash_filter::sHashIdentifier = 'h';
+
 escape_hash_filter::escape_hash_filter() : mNext(), mSeenNonWhitespace(false), mFinishLine(false)
 {
 }
diff --git a/components/files/configurationmanager.hpp b/components/files/configurationmanager.hpp
index 20d5c62ec..6e1cfbdb1 100644
--- a/components/files/configurationmanager.hpp
+++ b/components/files/configurationmanager.hpp
@@ -71,9 +71,9 @@ struct ConfigurationManager
  */
 struct escape_hash_filter : public boost::iostreams::input_filter
 {
-	static const int sEscape = '@';
-	static const int sHashIdentifier = 'h';
-	static const int sEscapeIdentifier = 'a';
+	static const int sEscape;
+	static const int sHashIdentifier;
+	static const int sEscapeIdentifier;
 
 	escape_hash_filter();
 	virtual ~escape_hash_filter();