diff --git a/releasetools/netbsd2minix.sh b/releasetools/netbsd2minix.sh
index d4125111c..3df67c4fd 100755
--- a/releasetools/netbsd2minix.sh
+++ b/releasetools/netbsd2minix.sh
@@ -7,7 +7,7 @@
 # NetBSD source tree
 : ${NETBSD=$MINIX/../netbsd}
 # New source tree
-: {SRC=$MINIX/../newsrc}
+: ${SRC=$MINIX/../newsrc}
 
 export MINIX NETBSD SRC