diff --git a/common/rfb/Logger_file.cxx b/common/rfb/Logger_file.cxx
index 8a109e4..cf195c0 100644
--- a/common/rfb/Logger_file.cxx
+++ b/common/rfb/Logger_file.cxx
@@ -97,7 +97,7 @@
 void Logger_File::setFilename(const char* filename)
 {
   closeFile();
-  m_filename = strDup(filename);
+  m_filename = safe_strdup(filename);
 }
 
 void Logger_File::setFile(FILE* file)
@@ -113,7 +113,7 @@
       fclose(m_file);
       m_file = 0;
     }
-    strFree(m_filename);
+    free(m_filename);
     m_filename = 0;
   }
 }