diff --git a/extern/vgsound_emu-modified/vgsound_emu/src/es550x/es5506.cpp b/extern/vgsound_emu-modified/vgsound_emu/src/es550x/es5506.cpp
index 39972e175..9f65292ff 100644
--- a/extern/vgsound_emu-modified/vgsound_emu/src/es550x/es5506.cpp
+++ b/extern/vgsound_emu-modified/vgsound_emu/src/es550x/es5506.cpp
@@ -60,7 +60,7 @@ void es5506_core::voice_tick()
     m_ch[i].reset();
   }
   // Update voice
-  for (int i=0; i<VGS_CLAMP(m_active,4,31); i++) {
+  for (int i=0; i<(VGS_CLAMP(m_active,4,31)+1); i++) {
     m_voice[i].tick(i);
 
     const u8 ca = m_voice[i].cr().ca()&7;