diff --git a/src/textobject.c b/src/textobject.c
index 9a8a916..153c14d 100644
--- a/src/textobject.c
+++ b/src/textobject.c
@@ -1798,11 +1798,17 @@
 
 	// Find out if we have a quote in the selection.
 	while (i <= col_end)
+	{
+	    // check for going over the end of the line, which can happen if
+	    // the line was changed after the Visual area was selected.
+	    if (line[i] == NUL)
+		break;
 	    if (line[i++] == quotechar)
 	    {
 		selected_quote = TRUE;
 		break;
 	    }
+	}
     }
 
     if (!vis_empty && line[col_start] == quotechar)