diff --git a/lib/src/experimental/RGLBaseSpa.gf b/lib/src/experimental/RGLBaseSpa.gf
new file mode 100644
index 000000000..5470cf343
--- /dev/null
+++ b/lib/src/experimental/RGLBaseSpa.gf
@@ -0,0 +1,20 @@
+concrete RGLBaseSpa of RGLBase = 
+
+-- modules in Grammar, excluding Structural, Verb, Sentence, Question
+  TenseSpa - [TTAnt],
+  NounSpa - [PPartNP],               -- to be generalized
+  AdjectiveSpa,
+  NumeralSpa,
+  ConjunctionSpa,
+  AdverbSpa,
+  PhraseSpa,
+----  Sentence,
+  QuestionSpa - [QuestCl,QuestVP,QuestSlash,QuestIAdv,QuestIComp],
+  RelativeSpa - [RelCl,RelVP,RelSlash],
+----  Idiom [NP, VP, Cl, Tense, ProgrVP, ExistNP, SelfAdvVP, SelfAdVVP, SelfNP], ---- why only these?
+
+  SymbolSpa [PN, Symb, String, CN, Card, NP, MkSymb, SymbPN, CNNumNP] ;          ---- why only these?
+
+----  Construction,
+----  Extensions,
+----  Documentation ;
diff --git a/lib/src/spanish/LangSpa.gf b/lib/src/spanish/LangSpa.gf
index ba1b64c62..7716054d8 100644
--- a/lib/src/spanish/LangSpa.gf
+++ b/lib/src/spanish/LangSpa.gf
@@ -2,7 +2,8 @@
 
 concrete LangSpa of Lang = 
   GrammarSpa,
-  LexiconSpa
+  LexiconSpa,
+  DocumentationSpa
   ** {
 
 flags startcat = Phr ; unlexer = text ; lexer = text ;