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-rw-r--r--src/sp-image.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/sp-image.h b/src/sp-image.h
index 066a63863..d18a4ca6e 100644
--- a/src/sp-image.h
+++ b/src/sp-image.h
@@ -15,7 +15,7 @@
*/
#define SP_IMAGE(obj) ((SPImage*)obj)
-#define SP_IS_IMAGE(obj) (dynamic_cast<const SPImage*>((SPObject*)obj))
+#define SP_IS_IMAGE(obj) (dynamic_cast<const SPImage*>((SPObject*)obj) != NULL)
/* SPImage */