diff --git a/tools/imx_cntr_image.sh b/tools/imx_cntr_image.sh
index 4c629e8..972b95c 100755
--- a/tools/imx_cntr_image.sh
+++ b/tools/imx_cntr_image.sh
@@ -10,7 +10,7 @@
 blobs=`awk '/^APPEND/ {print $2} /^IMAGE/ || /^DATA/ {print $3}' $file`
 for f in $blobs; do
 	tmp=$srctree/$f
-	if [ $f == "u-boot-dtb.bin" ]; then
+	if [ $f = "u-boot-dtb.bin" ]; then
 		continue
 	fi