diff --git a/plugins/ProM/Makefile b/plugins/ProM/Makefile
index baa709f..a76af72 100644
--- a/plugins/ProM/Makefile
+++ b/plugins/ProM/Makefile
@@ -36,7 +36,7 @@ ifeq ($(BUILD_LV2),true)
 TARGETS += lv2
 endif
 
-ifeq ($(BUILD_VST),true)
+ifeq ($(BUILD_VST2),true)
 TARGETS += vst
 endif