diff --git a/lib/u482c_decode_impl.h b/lib/u482c_decode_impl.h
index 9bc7a182..5f4d7999 100644
--- a/lib/u482c_decode_impl.h
+++ b/lib/u482c_decode_impl.h
@@ -9,7 +9,7 @@
  */
 
 #ifndef INCLUDED_SATELLITES_U482C_DECODE_IMPL_H
-#define INCLUDED_SATELLITES_U428C_DECODE_IMPL_H
+#define INCLUDED_SATELLITES_U482C_DECODE_IMPL_H
 
 #include <pmt/pmt.h>
 #include <satellites/u482c_decode.h>