diff --git a/alib2/src/automaton/TM/OneTapeDTM.cpp b/alib2/src/automaton/TM/OneTapeDTM.cpp
index 5431ce474c6832e57c8f708f9721da17244df8b8..486e16aa582ab60f36329c973a50977722f887ee 100644
--- a/alib2/src/automaton/TM/OneTapeDTM.cpp
+++ b/alib2/src/automaton/TM/OneTapeDTM.cpp
@@ -11,9 +11,6 @@
 
 namespace automaton {
 
-using namespace std;
-using namespace alphabet;
-
 OneTapeDTM::OneTapeDTM(const State& initialState, const alphabet::Symbol& blank) : SingleInitialState(initialState), BlankSymbolInputTapeAlphabet(blank) {
 }