diff --git a/fco2/Parse.hs b/fco2/Parse.hs
index 8fa7f49..9d1fa98 100644
--- a/fco2/Parse.hs
+++ b/fco2/Parse.hs
@@ -910,13 +910,19 @@ variant
 -- FIXME: We'll be able to deal with this once state is added.
 output :: OccParser A.Process
 output
+    =   channelOutput
+    <|> do { m <- md; p <- port; sBang; e <- expression; eol; return $ A.Output m p [A.OutExpression m e] }
+    <?> "output"
+
+channelOutput :: OccParser A.Process
+channelOutput
     =   do  m <- md
             c <- try channel
             sBang
             (try (do { sCASE; t <- tagName; sSemi; os <- sepBy1 outputItem sSemi; eol; return $ A.OutputCase m c t os })
              <|> do { sCASE; t <- tagName; eol; return $ A.OutputCase m c t [] }
              <|> do { os <- sepBy1 outputItem sSemi; eol; return $ A.Output m c os })
-    <?> "output"
+    <?> "channelOutput"
 
 outputItem :: OccParser A.OutputItem
 outputItem
diff --git a/fco2/testcases/inout.occ b/fco2/testcases/inout.occ
new file mode 100644
index 0000000..99bef04
--- /dev/null
+++ b/fco2/testcases/inout.occ
@@ -0,0 +1,36 @@
+PROTOCOL TWO IS INT; INT:
+PROTOCOL SEVERAL
+  CASE
+    none
+    one; INT
+:
+
+PROC foo ()
+  CHAN OF INT c:
+  CHAN OF TWO cc:
+  CHAN OF SEVERAL ccc:
+  PORT OF INT p:
+  TIMER tim:
+
+  INT x, y:
+  SEQ
+    c ? x
+    cc ? x; y
+    ccc ? CASE none
+    ccc ? CASE one; x
+    ccc ? CASE
+      none
+        SKIP
+      one; x
+        SKIP
+    tim ? x
+    tim ? AFTER x
+    p ? x
+
+    c ! x + 1
+    cc ! x + 1; y + 1
+    -- FIXME: This is the bodged syntax
+    ccc ! CASE none
+    ccc ! CASE one; x + 1
+    p ! x + 1
+: