diff --git a/src/newgrf_text.cpp b/src/newgrf_text.cpp
--- a/src/newgrf_text.cpp
+++ b/src/newgrf_text.cpp
@@ -35,8 +35,6 @@
 
 #include "safeguards.h"
 
-#define GRFTAB  28
-
 /**
  * Explains the newgrf shift bit positioning.
  * the grf base will not be used in order to find the string, but rather for
@@ -695,7 +693,7 @@ StringID AddGRFString(uint32 grfid, uint
 
 	grfmsg(3, "Added 0x%X: grfid %08X string 0x%X lang 0x%X string '%s'", id, grfid, stringid, newtext->langid, newtext->text);
 
-	return MakeStringID(GRFTAB, 0) + id; // Id reaches across multiple tabs
+	return MakeStringID(TEXT_TAB_NEWGRF1, 0) + id; // Id reaches across multiple tabs
 }
 
 /**
@@ -705,7 +703,7 @@ StringID GetGRFStringID(uint32 grfid, ui
 {
 	for (uint id = 0; id < _num_grf_texts; id++) {
 		if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
-			return MakeStringID(GRFTAB, 0) + id; // Id reaches across multiple tabs
+			return MakeStringID(TEXT_TAB_NEWGRF1, 0) + id; // Id reaches across multiple tabs
 		}
 	}