diff --git a/crypto/Makefile b/crypto/Makefile
index 4de62a1d1..6d6f43d95 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -39,7 +39,6 @@ OPTFLAGS ?= -O3 -g
 CFLAGS   += $(OPTFLAGS) \
             $(SANFLAGS) \
             -std=gnu99 \
-            -ftrivial-auto-var-init=zero \
             -W \
             -Wall \
             -Wextra \
@@ -60,6 +59,11 @@ CFLAGS   += $(OPTFLAGS) \
             -Wno-missing-braces \
             -Werror
 
+ifneq ($(FUZZER),1)
+	CFLAGS += -ftrivial-auto-var-init=zero
+endif
+
+
 ZKP_CFLAGS = \
 	-DECMULT_GEN_PREC_BITS=4 \
 	-DECMULT_WINDOW_SIZE=8 \