diff --git a/debian/changelog b/debian/changelog
index 575d730d..8139f673 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+livecd-rootfs (2.525.42) UNRELEASED; urgency=medium
+
+  * Fix core_snap variable scope issue
+
+ -- Robert C Jennings <robert.jennings@canonical.com>  Fri, 28 Feb 2020 08:29:57 -0600
+
 livecd-rootfs (2.525.41) bionic; urgency=medium
 
   * Use snap cli rather than custom snap-tool (LP: #1864252)
diff --git a/live-build/functions b/live-build/functions
index 1d9a9427..17be9eb6 100644
--- a/live-build/functions
+++ b/live-build/functions
@@ -440,6 +440,7 @@ _snap_preseed() {
     fi
 
     # Pre-seed snap's base
+    local core_snap=""
     case $SNAP_NAME in
         snapd)
             # snapd is self-contained, ignore base
@@ -458,7 +459,7 @@ _snap_preseed() {
                 exit 1
             fi
 
-            local core_snap=$(echo "$snap_info" | grep '^base:' | awk '{print $2}')
+            core_snap=$(echo "$snap_info" | grep '^base:' | awk '{print $2}')
 
             # If snap info does not list a base use 'core'
             core_snap=${core_snap:-core}