diff --git a/regressions/ck_ring/validate/ck_ring_spmc.c b/regressions/ck_ring/validate/ck_ring_spmc.c
index 259a8a1..75b8d18 100644
--- a/regressions/ck_ring/validate/ck_ring_spmc.c
+++ b/regressions/ck_ring/validate/ck_ring_spmc.c
@@ -241,7 +241,7 @@ main(int argc, char *argv[])
 	assert(nthr >= 1);
 
 	size = atoi(argv[3]);
-	assert(size > 4 && (size & size - 1) == 0);
+	assert(size >= 4 && (size & size - 1) == 0);
 	size -= 1;
 
 	ring = malloc(sizeof(ck_ring_t) * nthr);
diff --git a/regressions/ck_ring/validate/ck_ring_spmc_template.c b/regressions/ck_ring/validate/ck_ring_spmc_template.c
index 08a7eb1..379329b 100644
--- a/regressions/ck_ring/validate/ck_ring_spmc_template.c
+++ b/regressions/ck_ring/validate/ck_ring_spmc_template.c
@@ -214,7 +214,7 @@ main(int argc, char *argv[])
 	assert(nthr >= 1);
 
 	size = atoi(argv[3]);
-	assert(size > 4 && (size & size - 1) == 0);
+	assert(size >= 4 && (size & size - 1) == 0);
 	size -= 1;
 
 	ring = malloc(sizeof(ck_ring_t) * nthr);
diff --git a/regressions/ck_ring/validate/ck_ring_spsc.c b/regressions/ck_ring/validate/ck_ring_spsc.c
index 080f9c7..9dbb079 100644
--- a/regressions/ck_ring/validate/ck_ring_spsc.c
+++ b/regressions/ck_ring/validate/ck_ring_spsc.c
@@ -166,7 +166,7 @@ main(int argc, char *argv[])
 	assert(nthr >= 1);
 
 	size = atoi(argv[3]);
-	assert(size > 4 && (size & size - 1) == 0);
+	assert(size >= 4 && (size & size - 1) == 0);
 	size -= 1;
 
 	ring = malloc(sizeof(ck_ring_t) * nthr);
diff --git a/regressions/ck_ring/validate/ck_ring_spsc_template.c b/regressions/ck_ring/validate/ck_ring_spsc_template.c
index 6b4b4c5..d176986 100644
--- a/regressions/ck_ring/validate/ck_ring_spsc_template.c
+++ b/regressions/ck_ring/validate/ck_ring_spsc_template.c
@@ -167,7 +167,7 @@ main(int argc, char *argv[])
 	assert(nthr >= 1);
 
 	size = atoi(argv[3]);
-	assert(size > 4 && (size & size - 1) == 0);
+	assert(size >= 4 && (size & size - 1) == 0);
 	size -= 1;
 
 	ring = malloc(sizeof(CK_RING_INSTANCE(entry_ring)) * nthr);