diff --git a/libsubid/api.c b/libsubid/api.c
index b477b271..a7b904d0 100644
--- a/libsubid/api.c
+++ b/libsubid/api.c
@@ -40,7 +40,7 @@
 #include "subid.h"
 
 const char *Prog = "(libsubid)";
-extern FILE * shadow_logfd;
+FILE *shadow_logfd;
 
 bool libsubid_init(const char *progname, FILE * logfd)
 {
diff --git a/libsubid/subid.h b/libsubid/subid.h
index 5fef2572..eabafe4d 100644
--- a/libsubid/subid.h
+++ b/libsubid/subid.h
@@ -1,4 +1,5 @@
 #include <sys/types.h>
+#include <stdio.h>
 #include <stdbool.h>
 
 #ifndef SUBID_RANGE_DEFINED