diff --git a/doc/grammer.ebnf b/doc/grammars/type.ebnf
similarity index 100%
rename from doc/grammer.ebnf
rename to doc/grammars/type.ebnf
diff --git a/doc/grammer.peg b/doc/grammars/type.peg
similarity index 100%
rename from doc/grammer.peg
rename to doc/grammars/type.peg