diff --git a/tests/test_ll_queue.c b/tests/test_ll_queue.c
index 882845ea..90abc86f 100644
--- a/tests/test_ll_queue.c
+++ b/tests/test_ll_queue.c
@@ -35,7 +35,7 @@ static struct {
 #define PASS()      do { puts("PASS"); stats.passed++; } while(0)
 #define FAIL(msg)   do { printf("FAIL: %s\n", msg); stats.failed++; } while(0)
 
-#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return -1; } } while(0)
+#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return; } } while(0)
 #define ASSERT_EQ(a,b,m) ASSERT((a)==(b),m)
 
 /* ------------------------------------------------------------------ */
diff --git a/tests/test_nat_engine.c b/tests/test_nat_engine.c
index c60793c7..b51b342f 100644
--- a/tests/test_nat_engine.c
+++ b/tests/test_nat_engine.c
@@ -32,7 +32,7 @@ static struct {
 #define PASS()      do { puts("PASS"); stats.passed++; } while(0)
 #define FAIL(msg)   do { printf("FAIL: %s\n", msg); stats.failed++; } while(0)
 
-#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return -1; } } while(0)
+#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return; } } while(0)
 #define ASSERT_EQ(a,b,m) ASSERT((a)==(b),m)
 
 /* ================================================================
diff --git a/tests/test_nat_stress.c b/tests/test_nat_stress.c
index 5d68bc02..d1ee3781 100644
--- a/tests/test_nat_stress.c
+++ b/tests/test_nat_stress.c
@@ -27,7 +27,7 @@ static struct {
 #define PASS()      do { puts("PASS"); stats.passed++; } while(0)
 #define FAIL(msg)   do { printf("FAIL: %s\n", msg); stats.failed++; } while(0)
 
-#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return -1; } } while(0)
+#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return; } } while(0)
 #define ASSERT_EQ(a,b,m) ASSERT((a)==(b),m)
 
 static double now_ms(void) {
diff --git a/tests/test_route_lib.c b/tests/test_route_lib.c
index f9c54cfb..e7602354 100644
--- a/tests/test_route_lib.c
+++ b/tests/test_route_lib.c
@@ -85,7 +85,7 @@ static struct {
 #define PASS() do { puts("PASS"); stats.passed++; } while(0)
 #define FAIL(msg) do { printf("FAIL: %s\n", msg); stats.failed++; } while(0)
 
-#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return -1; } } while(0)
+#define ASSERT(c, m) do { if (!(c)) { FAIL(m); return; } } while(0)
 #define ASSERT_EQ(a,b,m) ASSERT((a)==(b),m)
 #define ASSERT_PTR(p,m) ASSERT((p)!=NULL,m)