diff --git a/katrain/config.json b/katrain/config.json
index 1a85486..7e7ee35 100644
--- a/katrain/config.json
+++ b/katrain/config.json
@@ -17,7 +17,7 @@
         "anim_pv_time": 0.5,
         "debug_level": 0,
         "lang": "en",
-        "version": "1.6.0"
+        "version": "1.6.1"
     },
     "timer": {
         "byo_length": 30,
diff --git a/katrain/core/constants.py b/katrain/core/constants.py
index b40cbd6..40812bd 100644
--- a/katrain/core/constants.py
+++ b/katrain/core/constants.py
@@ -1,4 +1,4 @@
-VERSION = "1.6.0"
+VERSION = "1.6.1"
 HOMEPAGE = "https://github.com/sanderland/katrain"
 CONFIG_MIN_VERSION = "1.6.0"  # keep config files from this version
 
diff --git a/katrain/gui/controlspanel.py b/katrain/gui/controlspanel.py
index 246af4c..9d5d45a 100644
--- a/katrain/gui/controlspanel.py
+++ b/katrain/gui/controlspanel.py
@@ -72,7 +72,8 @@ class ControlsPanel(BoxLayout):
         self.last_timer_update = (None, 0, False)
         self.beep = SoundLoader.load("sounds/countdownbeep.wav")
         self.boing = SoundLoader.load("sounds/boing.wav")
-        self.boing.volume = 0.1
+        if self.boing:
+            self.boing.volume = 0.1
         self.beep_start = 5.2
         self.timer_interval = 0.07