diff --git a/src/fs_mutex.cc b/src/fs_mutex.cc
index cd79f01..1e4bb2a 100644
--- a/src/fs_mutex.cc
+++ b/src/fs_mutex.cc
@@ -1,11 +1,11 @@
 #include "fs_mutex.hh"
 #include <pEp/std_utils.hh>
-#include<fstream>
+#include <fstream>
 
 
 namespace pEp {
     namespace PityTest11 {
-        fs_mutex::fs_mutex(std::string mutexpath) : mutexpath{ mutexpath } {}
+        fs_mutex::fs_mutex(std::string mutexpath) : mutexpath{ Utils::path_get_abs(mutexpath) } {}
 
         void fs_mutex::aquire() const
         {
@@ -36,6 +36,5 @@ namespace pEp {
             }
         }
 
-    } // namespace PityTest
+    } // namespace PityTest11
 } // namespace pEp
-