diff --git a/src/file.c b/src/file.c
index fc9dd13..0b9198a 100644
--- a/src/file.c
+++ b/src/file.c
@@ -69,7 +69,7 @@ public void FileFreeLine( file_t *f )
 }
 
 #ifdef USE_INTERNAL_IOBUF
-public inline int IobufGetc( iobuf_t *iobuf )
+extern public inline int IobufGetc( iobuf_t *iobuf )
 {
   if( iobuf->cur >= iobuf->last ){
     /* no stream buffer, reset and fill now */
@@ -82,7 +82,7 @@ public inline int IobufGetc( iobuf_t *iobuf )
   return iobuf->buf[ iobuf->cur++ ];
 }
 
-public inline int IobufUngetc( int ch, iobuf_t *iobuf )
+extern public inline int IobufUngetc( int ch, iobuf_t *iobuf )
 {
   if( iobuf->cur == 0 ){
     /* XXX: it should be tied to fp sanely */