diff --git a/hpc-bin.cabal b/hpc-bin.cabal
index f980e4db62374e75b6b9028f860144737bf6bc51..8564fa43601575238abb0b805b25c66839b19f2c 100644
--- a/hpc-bin.cabal
+++ b/hpc-bin.cabal
@@ -18,6 +18,7 @@ Flag base3
 
 Executable hpc
     Main-Is: Hpc.hs
+    Other-Modules: HpcParser
     if flag(base3)
         Build-Depends: base       >= 3   && < 4,
                        directory  >= 1   && < 1.1,