diff --git a/plug-ins/file-webp/file-webp-export.c b/plug-ins/file-webp/file-webp-export.c
index 917fbe61c8..e3d0afca2d 100644
--- a/plug-ins/file-webp/file-webp-export.c
+++ b/plug-ins/file-webp/file-webp-export.c
@@ -28,6 +28,10 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
+#ifdef _WIN32
+#include <io.h>
+#define fileno _fileno
+#endif
 
 #include <gegl.h>