diff --git a/install-racket.sh b/install-racket.sh
index e9aa973..362be0b 100644
--- a/install-racket.sh
+++ b/install-racket.sh
@@ -1,12 +1,7 @@
 set -e
 
 if [ "$RACKET_VERSION" = "HEAD" ]; then
-    # Unfortunately there is no abstract URL for "HEAD" -- the nighly
-    # builds have a version number like 5.90.0.9 embedded in the
-    # URL. So this will need to be updated manually whenever the
-    # version is bumped.
-    HEAD_VERSION="5.90.0.9"
-    URL="http://www.cs.utah.edu/plt/snapshots/current/installers/racket-${HEAD_VERSION}-x86_64-linux-precise.sh"
+    URL="http://www.cs.utah.edu/plt/snapshots/current/installers/racket-current-x86_64-linux-precise.sh"
 else
     URL="http://download.racket-lang.org/installers/${RACKET_VERSION}/racket/racket-${RACKET_VERSION}-bin-x86_64-linux-debian-squeeze.sh"
 fi