diff --git a/HOpenCV.cabal b/HOpenCV.cabal
--- a/HOpenCV.cabal
+++ b/HOpenCV.cabal
@@ -1,5 +1,5 @@
 name: HOpenCV
-version: 0.1.2.3
+version: 0.1.2.4
 license: BSD3
 maintainer: Noam Lewis <jones.noamle@gmail.com>
 bug-reports: mailto:jones.noamle@gmail.com
diff --git a/src/AI/CV/OpenCV/HOpenCV_wrap.c b/src/AI/CV/OpenCV/HOpenCV_wrap.c
--- a/src/AI/CV/OpenCV/HOpenCV_wrap.c
+++ b/src/AI/CV/OpenCV/HOpenCV_wrap.c
@@ -141,6 +141,6 @@
                               int min_neighbors , int flags,
                               int width, int height)
 {
-    return cvHaarDetectObjects(image, cascade, storage, scale_factor, min_neighbors, flags, cvSize(width, height));
+    return cvHaarDetectObjects(image, cascade, storage, scale_factor, min_neighbors, flags, cvSize(width, height), cvSize(0, 0));
 }