diff --git a/scripts/build b/scripts/build
index fd6050a8ff..ae818a63e6 100755
--- a/scripts/build
+++ b/scripts/build
@@ -388,7 +388,6 @@ if [ ! -f $STAMP ]; then
 
     PKG_DEEPMD5=$(find $STAMP_DEPENDS -exec md5sum {} \; 2>/dev/null | sort | md5sum | cut -d" " -f1)
     for i in PKG_NAME PKG_DEEPMD5; do
-      eval val=\$$i
-      echo "STAMP_$i=\"$val\"" >> $STAMP
+      echo "STAMP_$i=\"${!i}\"" >> $STAMP
     done
 fi
diff --git a/scripts/unpack b/scripts/unpack
index 3967cc5384..88b8160c6b 100755
--- a/scripts/unpack
+++ b/scripts/unpack
@@ -202,7 +202,6 @@ if [ "$PKG_SECTION" != "virtual" ]; then
 
   PKG_DEEPMD5=$(find $STAMP_DEPENDS -exec md5sum {} \; 2>/dev/null | sort | md5sum | cut -d" " -f1)
   for i in PKG_NAME PKG_DEEPMD5; do
-    eval val=\$$i
-    echo "STAMP_$i=\"$val\"" >> $STAMP
+    echo "STAMP_$i=\"${!i}\"" >> $STAMP
   done
 fi