diff --git a/photos2pdf b/photos2pdf
index 4df53a3..c1d97f3 100755
--- a/photos2pdf
+++ b/photos2pdf
@@ -378,7 +378,7 @@ if [[ $rv -ne 0 ]] ; then
     error "One or more errors during image conversion; aborted." "$rv"
 fi
 
-for png in "out/"*.png ; do
+for png in "$outdir/"*.png ; do
     info "Processing \"$png\" ..."
 
     read -r width height < <(