diff --git a/src/newgrf_text.cpp b/src/newgrf_text.cpp
--- a/src/newgrf_text.cpp
+++ b/src/newgrf_text.cpp
@@ -691,7 +691,7 @@ StringID AddGRFString(uint32 grfid, uint
 	}
 	AddGRFTextToList(&_grf_text[id].textholder, newtext);
 
-	grfmsg(3, "Added 0x%X: grfid %08X string 0x%X lang 0x%X string '%s'", id, grfid, stringid, newtext->langid, newtext->text);
+	grfmsg(3, "Added 0x%X: grfid %08X string 0x%X lang 0x%X string '%s' (%X)", id, grfid, stringid, newtext->langid, newtext->text, MakeStringID(TEXT_TAB_NEWGRF_START, id));
 
 	return MakeStringID(TEXT_TAB_NEWGRF_START, id);
 }
@@ -699,7 +699,7 @@ StringID AddGRFString(uint32 grfid, uint
 /**
  * Returns the index for this stringid associated with its grfID
  */
-StringID GetGRFStringID(uint32 grfid, uint16 stringid)
+StringID GetGRFStringID(uint32 grfid, StringID stringid)
 {
 	for (uint id = 0; id < _num_grf_texts; id++) {
 		if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
diff --git a/src/newgrf_text.h b/src/newgrf_text.h
--- a/src/newgrf_text.h
+++ b/src/newgrf_text.h
@@ -21,7 +21,7 @@
 static const WChar NFO_UTF8_IDENTIFIER = 0x00DE;
 
 StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid, bool new_scheme, bool allow_newlines, const char *text_to_add, StringID def_string);
-StringID GetGRFStringID(uint32 grfid, uint16 stringid);
+StringID GetGRFStringID(uint32 grfid, StringID stringid);
 const char *GetGRFStringFromGRFText(const struct GRFText *text);
 const char *GetGRFStringPtr(uint16 stringid);
 void CleanUpStrings();