diff --git a/engines/sci/engine/workarounds.cpp b/engines/sci/engine/workarounds.cpp
index e574b960fb0..cfc87498467 100644
--- a/engines/sci/engine/workarounds.cpp
+++ b/engines/sci/engine/workarounds.cpp
@@ -552,6 +552,7 @@ const SciWorkaroundEntry kDoSoundPlay_workarounds[] = {
 	{ GID_QFG4,         -1,  64989,   0,          NULL,          "play",                    NULL,     0, { WORKAROUND_STILLCALL, 0 } }, // always passes an extra null argument
 	{ GID_PQ4,          -1,  64989,   0,          NULL,          "play",                    NULL,     0, { WORKAROUND_STILLCALL, 0 } }, // always passes an extra null argument
 	{ GID_KQ7,          -1,  64989,   0,          NULL,          "play",                    NULL,     0, { WORKAROUND_STILLCALL, 0 } }, // always passes an extra null argument
+	{ GID_SQ6,          -1,      0,   0,          NULL,          "play",                    NULL,     0, { WORKAROUND_STILLCALL, 0 } }, // Demo passes an extra null argument on startup
 	{ GID_GK1,          -1,  64989,   0,          NULL,          "play",                    NULL,     0, { WORKAROUND_STILLCALL, 0 } }, // Mac version always passes an extra null argument
 	{ GID_GK2,          -1,  64989,   0,          NULL,          "play",                    NULL,     0, { WORKAROUND_STILLCALL, 0 } }, // Demo passes an extra null argument when clicking on buttons
 	SCI_WORKAROUNDENTRY_TERMINATOR