building/porting.md

@@ -94,7 +94,7 @@ SRC_CC_OPTS += -m64
 ```
 
 
-As of June 23rd, GHC HQ has exorcised and split out GMP from the runtime
+As of June 23rd, 2009, GHC HQ has exorcised and split out GMP from the runtime
 system into the separate 'integer-gmp' package. If you are bootstrapping a
 compiler and are going to use integer-gmp for your `Integer` type, instead of
 'integer-simple' which is a pure Haskell equivalent, then you will need to