diff --git a/Makefile b/Makefile
index e814442..24834db 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ BUILD_DIR := build
 RELEASE_OPTIMIZE_FLAGS ?= -g -O3
 DEBUG_OPTIMIZE_FLAGS ?= -g -O0
 JS_OPTIMIZE_FLAGS ?= -O3
-FUZZING_OPTIMIZE_FLAGS ?= -O3
+FUZZER_OPTIMIZE_FLAGS ?= -O3
 CC = gcc
 EMCC = emcc
 EMAR = emar