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-rw-r--r--engines/sci/engine/kpathing.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/engines/sci/engine/kpathing.cpp b/engines/sci/engine/kpathing.cpp
index 2f8dcb23b6..c168df3bf9 100644
--- a/engines/sci/engine/kpathing.cpp
+++ b/engines/sci/engine/kpathing.cpp
@@ -1392,7 +1392,7 @@ reg_t kAvoidPath(EngineState *s, int argc, reg_t *argv) {
if (argc < 7)
error("[avoidpath] Not enough arguments");
- poly_list = GET_SEL32(s->_segMan, argv[4], SELECTOR(elements));
+ poly_list = (!argv[4].isNull() ? GET_SEL32(s->_segMan, argv[4], SELECTOR(elements)) : NULL_REG);
width = argv[5].toUint16();
height = argv[6].toUint16();
if (argc > 7)