diff --git a/src/option.h b/src/option.h
index 7e657dd..605d588 100644
--- a/src/option.h
+++ b/src/option.h
@@ -499,6 +499,9 @@
 EXTERN int	p_fs;		/* 'fsync' */
 #endif
 EXTERN int	p_gd;		/* 'gdefault' */
+#ifdef FEAT_TEXT_PROP
+EXTERN char_u	*p_pvp;		// 'previewpopup'
+#endif
 #ifdef FEAT_PRINTER
 EXTERN char_u	*p_pdev;	/* 'printdevice' */
 # ifdef FEAT_POSTSCRIPT