diff --git a/plugins/src/tascar_ap_filter.cc b/plugins/src/tascar_ap_filter.cc
index 2169ef77..5bdab769 100644
--- a/plugins/src/tascar_ap_filter.cc
+++ b/plugins/src/tascar_ap_filter.cc
@@ -75,9 +75,8 @@ void biquadplugin_t::add_variables(TASCAR::osc_server_t* srv)
   srv->add_float("/fc", &fc, "]0,20000]", "Cutoff frequency in Hz");
   if(ftype == biquadplugin_t::equalizer) {
     srv->add_float("/gain", &gain, "[-30,30]", "Gain in dB");
-    srv->add_float("/q", &Q, "]0,1[", "Q-factor of resonance filter");
+    srv->add_float("/Q", &Q, "]0,10]", "Q-factor of resonance filter");
   }
-  // srv->add_bool("/highpass",&highpass);
   srv->unset_variable_owner();
 }