diff --git a/meson.build b/meson.build
index efe10cd..408b87a 100644
--- a/meson.build
+++ b/meson.build
@@ -69,6 +69,7 @@
   'programmer_table.c',
   'sfdp.c',
   'spi25.c',
+  'spi25_prepare.c',
   'spi25_statusreg.c',
   'spi95.c',
   'spi.c',