diff --git a/platforms/GoSXB/build.sh b/platforms/GoSXB/build.sh
index 820145f..288ad2e 100755
--- a/platforms/GoSXB/build.sh
+++ b/platforms/GoSXB/build.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 set -e -x
+cd $(dirname $0)
 ca65 -I ../../inc GoSXB.s -l GoSXB.lst
 ../../build.sh GoSXB
 ld65 -C GoSXB.l -S 0x8000 GoSXB.o ../../forth.o -m forth.map -o forth