diff --git a/content/upload.cpp b/content/upload.cpp
index 138b145..a0ccf0f 100755
--- a/content/upload.cpp
+++ b/content/upload.cpp
@@ -10,6 +10,8 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <cstdio>
+#include <errno.h>
+#include <string.h>
 #include "content.h"
 #include "../core/request.h"
 #include "../core/data.h"
@@ -64,9 +66,20 @@ struct stat sb;
 	}
 	else
 	{
+	    int err = errno;
+
 		// !! skasowac takze plik z bazy danych
-		log << log1 << "Content: can't move the tmp file from: " << tmp_filename;
-		log << log1 << ", to: " << path << logend;
+	       log << log1 << "Content: can't move the tmp file from: " << tmp_filename;
+		log << log1 << ", to: " << path;
+		log << log1 << ", errno: " << err;
+
+		const char * err_msg = strerror(err);
+
+		if( err_msg )
+		    log << log1 << ": " << err_msg;
+
+		log << logend;
+
 		request.status = Error::permission_denied;
 	}
 }