diff --git a/squashfs_utils/mksquashfsimage.sh b/squashfs_utils/mksquashfsimage.sh
index 7f96cb1..260a0fd 100755
--- a/squashfs_utils/mksquashfsimage.sh
+++ b/squashfs_utils/mksquashfsimage.sh
@@ -5,7 +5,7 @@
 function usage() {
 cat<<EOT
 Usage:
-${0##*/} SRC_DIR OUTPUT_FILE [-m MOUNT_POINT] [-c FILE_CONTEXTS] [-b BLOCK_SIZE]
+${0##*/} SRC_DIR OUTPUT_FILE [-s] [-m MOUNT_POINT] [-c FILE_CONTEXTS] [-b BLOCK_SIZE] [-z COMPRESSOR] [-zo COMPRESSOR_OPT]
 EOT
 }
 
@@ -24,6 +24,12 @@
 OUTPUT_FILE=$2
 shift; shift
 
+SPARSE=false
+if [[ "$1" == "-s" ]]; then
+    SPARSE=true
+    shift;
+fi
+
 MOUNT_POINT=
 if [[ "$1" == "-m" ]]; then
     MOUNT_POINT=$2
@@ -42,6 +48,19 @@
     shift; shift
 fi
 
+COMPRESSOR="lz4"
+COMPRESSOR_OPT="-Xhc"
+if [[ "$1" == "-z" ]]; then
+    COMPRESSOR=$2
+    COMPRESSOR_OPT=
+    shift; shift
+fi
+
+if [[ "$1" == "-zo" ]]; then
+    COMPRESSOR_OPT=$2
+    shift; shift
+fi
+
 OPT=""
 if [ -n "$MOUNT_POINT" ]; then
   OPT="$OPT -mount-point $MOUNT_POINT"
@@ -53,9 +72,20 @@
   OPT="$OPT -b $BLOCK_SIZE"
 fi
 
-MAKE_SQUASHFS_CMD="mksquashfs $SRC_DIR $OUTPUT_FILE -no-progress -comp lz4 -Xhc -no-exports -noappend -no-recovery -android-fs-config $OPT"
+MAKE_SQUASHFS_CMD="mksquashfs $SRC_DIR/ $OUTPUT_FILE -no-progress -comp $COMPRESSOR $COMPRESSOR_OPT -no-exports -noappend -no-recovery -android-fs-config $OPT"
 echo $MAKE_SQUASHFS_CMD
 $MAKE_SQUASHFS_CMD
+
 if [ $? -ne 0 ]; then
     exit 4
 fi
+
+SPARSE_SUFFIX=".sparse"
+if [ "$SPARSE" = true ]; then
+    img2simg $OUTPUT_FILE $OUTPUT_FILE$SPARSE_SUFFIX
+    if [ $? -ne 0 ]; then
+        exit 4
+    fi
+    mv $OUTPUT_FILE$SPARSE_SUFFIX $OUTPUT_FILE
+fi
+