diff --git a/pkgs/html-pkgs/html-lib/info.rkt b/pkgs/html-pkgs/html-lib/info.rkt
index c14a2ca..b851188 100644
--- a/pkgs/html-pkgs/html-lib/info.rkt
+++ b/pkgs/html-pkgs/html-lib/info.rkt
@@ -1 +1,3 @@
 #lang setup/infotab
+
+(define collection 'multi)
diff --git a/pkgs/slideshow-pkgs/slideshow-exe/info.rkt b/pkgs/slideshow-pkgs/slideshow-exe/info.rkt
index 37f4228..e2cc993 100644
--- a/pkgs/slideshow-pkgs/slideshow-exe/info.rkt
+++ b/pkgs/slideshow-pkgs/slideshow-exe/info.rkt
@@ -1,3 +1,5 @@
 #lang setup/infotab
 
+(define collection 'multi)
+
 (define deps '("slideshow-lib"))