diff --git a/make/js.mk b/make/js.mk
index 028ccad4..d3712281 100644
--- a/make/js.mk
+++ b/make/js.mk
@@ -7,7 +7,10 @@ JS_EXTERNS_DIRS       ?= /opt/closure-compiler/share/externs
 JS_EXTERNS            ?= $(sort $(JS_EXTRA_EXTERNS) jquery-3.3.js)
 JS_EXTERN_PATHS       ?= $(wildcard $(foreach d,$(JS_EXTERNS_DIRS),$(addprefix $d/,$(JS_EXTERNS))))
 JS_MINIFY_OPTS        ?= $(addprefix --externs ,$(JS_EXTERN_PATHS)) --compilation_level ADVANCED --strict_mode_input
-JS_MINIFY_EXE         ?= $(JAVA) -jar /usr/share/java/closure-compiler.jar
+JS_MINIFY_EXE         ?= $(JAVA) -jar $(firstword $(wildcard \
+	$(CVS_PROJ_DIR)/closure-compiler/contrib/closure-compiler/install-root/usr/share/java/closure-compiler.jar \
+	/usr/share/java/closure-compiler.jar \
+	))
 JS_MINIFY             ?= $(JS_MINIFY_EXE) $(JS_MINIFY_OPTS)
 
 # This is not nice. It requires install-files to be included from elsewhere,