diff --git a/fips/aes/fips_gcmtest.c b/fips/aes/fips_gcmtest.c
index 772783e8a52958a8a94cbaed90c7006fc9a984ce..bfb6c2700c4c972bec53e6d903ec379a8fbc5e3d 100644
--- a/fips/aes/fips_gcmtest.c
+++ b/fips/aes/fips_gcmtest.c
@@ -268,7 +268,7 @@ static void xtstest(FILE *in, FILE *out)
 	char buf[204800];
 	char lbuf[204800];
 	char *keyword, *value;
-	int inlen;
+	int inlen = 0;
 	int encrypt = 0;
 	int rv;
 	long l;