diff --git a/bin/compile b/bin/compile
index 4288ccebfdda550e9dc5beced4ea288214fa2324..54383a41f181394a7ff0a486a9075b2fe2af7941 100755
--- a/bin/compile
+++ b/bin/compile
@@ -104,7 +104,7 @@ LEGACY_VIRTUALENV=false
 VIRTUALENV_LOC=$MODERN_VIRTUALENV_LOC
 
 # Support "old-style" virtualenvs.
-if [-f $CACHE_DIR/$LEGACY_VIRTUALENV_TRIGGER]; do
+if [-f $CACHE_DIR/$LEGACY_VIRTUALENV_TRIGGER]; then
   LEGACY_VIRTUALENV=true
   VIRTUALENV_LOC=$LEGACY_VIRTUALENV_LOC
   CACHED_DIRS=$LEGACY_VIRTUALENV_DIRS