diff --git a/ipmitool/src/plugins/lanplus/lanplus.c b/ipmitool/src/plugins/lanplus/lanplus.c
index bb631cd..bd1260d 100644
--- a/ipmitool/src/plugins/lanplus/lanplus.c
+++ b/ipmitool/src/plugins/lanplus/lanplus.c
@@ -3184,7 +3184,7 @@ ipmi_lanplus_open(struct ipmi_intf * intf)
 
 
 
-void test_crypt1()
+void test_crypt1(void)
 {
 	uint8_t key[]  =
 		{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A,
@@ -3233,7 +3233,7 @@ void test_crypt1()
 
 
 
-void test_crypt2()
+void test_crypt2(void)
 {
 	uint8_t key[]  =
 		{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A,