diff --git a/bin/compile b/bin/compile
index 2d49a7f..25ecc81 100755
--- a/bin/compile
+++ b/bin/compile
@@ -32,7 +32,7 @@ export PATH="$PATH:/app/vendor/jemalloc/bin"
 
 # Configure LD_PRELOAD when JEMALLOC_ENABLED is set to "true". Setting this can
 # be tricky for people and it occasionally changes with new versions.
-if [ $JEMALLOC_ENABLED = 'true' ]; then
+if [ "$JEMALLOC_ENABLED" = 'true' ]; then
   export LD_PRELOAD="/app/vendor/jemalloc/lib/libjemalloc.so $LD_PRELOAD"
 fi
 EOF