diff --git a/Makefile b/Makefile
index e938dfb95c..5e2e97fa42 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-PLOVR_JAR=bin/plovr-4b3caf2b7d84.jar
+PLOVR_JAR = bin/plovr-4b3caf2b7d84.jar
 SRC = $(shell find externs src/ol -name \*.js)
 TARGETS = $(shell find demos -name advanced-optimizations.js -o -name simple-optimizations.js)
 comma := ,