diff --git a/src/Cursor.cpp b/src/Cursor.cpp
index 39083e5043..ee54ace608 100644
--- a/src/Cursor.cpp
+++ b/src/Cursor.cpp
@@ -2399,7 +2399,9 @@ bool notifyCursorLeavesOrEnters(Cursor const & old, Cursor & cur)
 
 void Cursor::setLanguageFromInput()
 {
-	if (!lyxrc.respect_os_kbd_language)
+	if (!lyxrc.respect_os_kbd_language
+	    || !inTexted()
+	    || paragraph().isPassThru())
 		return;
 	string const & code = theApp()->inputLanguageCode();
 	Language const * lang = languages.getFromCode(code, buffer()->getLanguages());