diff --git a/spine-c/include/spine/Animation.h b/spine-c/include/spine/Animation.h
index a46e3a0ea..30038287c 100644
--- a/spine-c/include/spine/Animation.h
+++ b/spine-c/include/spine/Animation.h
@@ -104,7 +104,7 @@ struct spTimeline {
 
 #ifdef __cplusplus
 	spTimeline() :
-		type(0),
+		type(SP_TIMELINE_SCALE),
 		vtable(0) {
 	}
 #endif
diff --git a/spine-c/include/spine/Attachment.h b/spine-c/include/spine/Attachment.h
index 66d417ba3..5f37de5dd 100644
--- a/spine-c/include/spine/Attachment.h
+++ b/spine-c/include/spine/Attachment.h
@@ -47,7 +47,7 @@ typedef struct spAttachment {
 #ifdef __cplusplus
 	spAttachment() :
 		name(0),
-		type(0),
+		type(SP_ATTACHMENT_REGION),
 		vtable(0) {
 	}
 #endif