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-rw-r--r--src/sp-pattern.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/sp-pattern.h b/src/sp-pattern.h
index c7a2a96c3..4e3657ccf 100644
--- a/src/sp-pattern.h
+++ b/src/sp-pattern.h
@@ -17,7 +17,7 @@
#include "sp-item.h"
-#define SP_PATTERN(obj) ((SPPattern*)obj)
+#define SP_PATTERN(obj) (dynamic_cast<SPPattern*>((SPObject*)obj))
#define SP_IS_PATTERN(obj) (dynamic_cast<const SPPattern*>((SPObject*)obj) != NULL)
class SPPatternReference;