diff --git a/haiku-apps/a_book/a_book-1.1.recipe b/haiku-apps/a_book/a_book-1.1.recipe
index 06c011150..4ccc15020 100644
--- a/haiku-apps/a_book/a_book-1.1.recipe
+++ b/haiku-apps/a_book/a_book-1.1.recipe
@@ -10,7 +10,7 @@ SOURCE_URI="https://github.com/HaikuArchives/A-Book/archive/b52be13bbf3f236fd10c
 CHECKSUM_SHA256="fa2ee3f6a7fe08f8a67c3d9ce0574e54def68d0bbc7e9950c4826bd50f4dd46a"
 SOURCE_DIR="A-Book-b52be13bbf3f236fd10c5053b8ecf11c8211ce7e"
 
-ARCHITECTURES="x86_gcc2 x86 ?x86_64"
+ARCHITECTURES="x86_gcc2 x86 x86_64"
 
 PROVIDES="
 	a_book = $portVersion