diff --git a/src/sample.c b/src/sample.c
index 8141baf..c20f52b 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -23,7 +23,7 @@ imdb_sample(imdb_rec_t * const rec,
     status = MagickReadImage(wand, source);
 
   if (status == MagickPass)
-    w = MagickGetImageHeight(wand);
+    w = MagickGetImageWidth(wand);
 
   if (status == MagickPass)
     h = MagickGetImageHeight(wand);