diff --git a/src/util/build_id.h b/src/util/build_id.h
index 1872ca5c7e5..2ff596e0b99 100644
--- a/src/util/build_id.h
+++ b/src/util/build_id.h
@@ -24,6 +24,10 @@
 #ifndef BUILD_ID_H
 #define BUILD_ID_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef HAVE_DL_ITERATE_PHDR
 
 #include <stdint.h>
@@ -41,4 +45,7 @@ build_id_data(const struct build_id_note *note);
 
 #endif
 
+#ifdef __cplusplus
+}
+#endif
 #endif /* BUILD_ID_H */