diff --git a/srcpkgs/squeak/template b/srcpkgs/squeak/template
index 5fedd1a00d1..26b5b06f3e5 100644
--- a/srcpkgs/squeak/template
+++ b/srcpkgs/squeak/template
@@ -16,6 +16,11 @@ homepage="http://squeakvm.org"
 distfiles="http://squeakvm.org/unix/release/Squeak-${version}-src.tar.gz"
 checksum=3db6d12ea223e5bc49f52af7f6f832e383a3a006a53bc8a87f6469e1af5dfc2e
 
+# a terrible hack around terrible code
+if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
+	CFLAGS+=" -D__NEED_struct__IO_FILE"
+fi
+
 post_install() {
 	vlicense unix/doc/LICENSE
 }