diff --git a/src/bin/jp2/convert.c b/src/bin/jp2/convert.c
index 8e448d7e..a894a369 100644
--- a/src/bin/jp2/convert.c
+++ b/src/bin/jp2/convert.c
@@ -2049,7 +2049,7 @@ static opj_image_t* rawtoimage_common(const char *filename, opj_cparameters_t *p
     {
         unsigned short value;
         for(compno = 0; compno < numcomps; compno++) {
-            int nloop = (w*h)/(raw_cp->rawComps[compno].dx*raw_cp->rawComps[compno].dx);
+            int nloop = (w*h)/(raw_cp->rawComps[compno].dx*raw_cp->rawComps[compno].dy);
             for (i = 0; i < nloop; i++) {
                 unsigned char temp1;
                 unsigned char temp2;