1 files changed, 2 insertions, 4 deletions
diff --git a/tikzit/src/gtk/PreviewRenderer.h b/tikzit/src/gtk/PreviewRenderer.h
index c9e89a7..d691722 100644
--- a/tikzit/src/gtk/PreviewRenderer.h
+++ b/tikzit/src/gtk/PreviewRenderer.h
@@ -30,14 +30,12 @@
     TikzDocument    *document;
     PopplerDocument *pdfDocument;
     PopplerPage     *pdfPage;
-    double          width;
-    double          height;
 }
 
 @property (readonly) Preambles    *preambles;
 @property (retain)   TikzDocument *document;
-@property (assign)   double        height;
-@property (assign)   double        width;
+@property (readonly) double        height;
+@property (readonly) double        width;
 
 - (id) initWithPreambles:(Preambles*)p config:(Configuration*)c;