diff --git a/install-racket.sh b/install-racket.sh
index 10d9c0d..98f1328 100755
--- a/install-racket.sh
+++ b/install-racket.sh
@@ -4,7 +4,7 @@
 set -e
 
 if [[ "$RACKET_EDITION" = "" ]]; then
-    RACKET_EDITION = "FULL"
+    RACKET_EDITION="FULL"
 fi
 
 if [[ "$RACKET_VERSION" = "HEAD" ]]; then