diff --git a/minix/tests/test80.c b/minix/tests/test80.c
index 3db8140b1..0975387aa 100644
--- a/minix/tests/test80.c
+++ b/minix/tests/test80.c
@@ -50,7 +50,6 @@ static void callback_cleanup(void) {
 
 int main(int argc, char *argv[])
 {
-	int i;
 	struct sockaddr_in clientaddr = {
 		.sin_family = AF_INET,
 		.sin_port = htons(PORT1),
diff --git a/minix/tests/test81.c b/minix/tests/test81.c
index 1043bcc2f..1a3188cd6 100644
--- a/minix/tests/test81.c
+++ b/minix/tests/test81.c
@@ -50,7 +50,6 @@ static void callback_cleanup(void) {
 
 int main(int argc, char *argv[])
 {
-	int i;
 	struct sockaddr_in clientaddr = {
 		.sin_family = AF_INET,
 		.sin_port = htons(PORT1),
diff --git a/minix/tests/test83.c b/minix/tests/test83.c
index 35122fbfe..2e2167f7c 100644
--- a/minix/tests/test83.c
+++ b/minix/tests/test83.c
@@ -170,8 +170,8 @@ static char *sigstr_itoa(char *p, unsigned long n) {
 	return p;
 }
 
+#if 0
 static void dbgprintdata(const void *data, size_t size) {
-#if DEBUG
 	size_t addr;
 	const unsigned char *p = data;
 
@@ -184,8 +184,8 @@ static void dbgprintdata(const void *data, size_t size) {
 	}
 	fprintf(stderr, "\n");
 	fflush(stderr);
-#endif
 }
+#endif
 
 static void dbgprint_sig(const char *name) {
 #if DEBUG