diff --git a/ast.hs b/AST.hs
similarity index 100%
rename from ast.hs
rename to AST.hs
diff --git a/interp.hs b/Interp.hs
similarity index 100%
rename from interp.hs
rename to Interp.hs
diff --git a/lamb.hs b/Lamb.hs
similarity index 100%
rename from lamb.hs
rename to Lamb.hs
diff --git a/parser.hs b/Parser.hs
similarity index 100%
rename from parser.hs
rename to Parser.hs