diff --git a/antigen.zsh b/antigen.zsh
index fc4149b..c24a6a8 100644
--- a/antigen.zsh
+++ b/antigen.zsh
@@ -356,7 +356,10 @@ antigen-snapshot () {
     # The snapshot content lines are pairs of repo-url and git version hash, in
     # the form:
     #   <version-hash> <repo-url>
-    local snapshot_content="$(-antigen-echo-record | sed 's/ .*$//' | sort -u |
+    local snapshot_content="$(-antigen-echo-record |
+        grep 'true$' |
+        sed 's/ .*$//' |
+        sort -u |
         while read url; do
             local dir="$(-antigen-get-clone-dir "$url")"
             local version_hash="$(cd "$dir" && git rev-parse HEAD)"