diff --git a/src/boot/efi/fuzz-bcd.c b/src/boot/efi/fuzz-bcd.c
index e56183c4f0..6d76533e8f 100644
--- a/src/boot/efi/fuzz-bcd.c
+++ b/src/boot/efi/fuzz-bcd.c
@@ -1,12 +1,11 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "alloc-util.h"
+#include "bcd.h"
 #include "fd-util.h"
 #include "fuzz.h"
 #include "utf8.h"
 
-#include "bcd.c"
-
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         _cleanup_free_ void *p = NULL;
 
diff --git a/src/boot/efi/meson.build b/src/boot/efi/meson.build
index 22d28e4197..3bb0827f8c 100644
--- a/src/boot/efi/meson.build
+++ b/src/boot/efi/meson.build
@@ -419,7 +419,7 @@ if efi_arch[1] in ['ia32', 'x86_64', 'arm', 'aarch64']
                  'HAVE_ZSTD'],
         ]
         fuzzers += [
-                [files('fuzz-bcd.c', 'efi-string.c')],
+                [files('fuzz-bcd.c', 'bcd.c', 'efi-string.c')],
         ]
 endif