diff --git a/Makefile b/Makefile
index 5b3f26b..fffa15f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 t:
-	go test ./...
+	go test ./... -race -count=1
 
 f:
 	go fmt ./...
diff --git a/cache.go b/cache.go
index d81d9a7..a354961 100644
--- a/cache.go
+++ b/cache.go
@@ -304,7 +304,13 @@ func (c *Cache) doPromote(item *Item) bool {
 func (c *Cache) gc() int {
 	dropped := 0
 	element := c.list.Back()
-	for i := 0; i < c.itemsToPrune; i++ {
+
+	itemsToPrune := int64(c.itemsToPrune)
+	if min := c.size - c.maxSize; min > itemsToPrune {
+		itemsToPrune = min
+	}
+
+	for i := int64(0); i < itemsToPrune; i++ {
 		if element == nil {
 			return dropped
 		}
diff --git a/cache_test.go b/cache_test.go
index 921bd4d..3f2a0e6 100644
--- a/cache_test.go
+++ b/cache_test.go
@@ -18,6 +18,7 @@ func Test_Cache(t *testing.T) {
 
 func (_ CacheTests) DeletesAValue() {
 	cache := New(Configure())
+	defer cache.Stop()
 	Expect(cache.ItemCount()).To.Equal(0)
 
 	cache.Set("spice", "flow", time.Minute)
@@ -32,6 +33,7 @@ func (_ CacheTests) DeletesAValue() {
 
 func (_ CacheTests) DeletesAPrefix() {
 	cache := New(Configure())
+	defer cache.Stop()
 	Expect(cache.ItemCount()).To.Equal(0)
 
 	cache.Set("aaa", "1", time.Minute)
@@ -55,6 +57,7 @@ func (_ CacheTests) DeletesAPrefix() {
 
 func (_ CacheTests) DeletesAFunc() {
 	cache := New(Configure())
+	defer cache.Stop()
 	Expect(cache.ItemCount()).To.Equal(0)
 
 	cache.Set("a", 1, time.Minute)
diff --git a/go.mod b/go.mod
index eebeeb9..434fead 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,6 @@ module github.com/karlseguin/ccache/v2
 go 1.13
 
 require (
-	github.com/karlseguin/expect v1.0.2-0.20190806010014-778a5f0c6003
+	github.com/karlseguin/expect v1.0.7
 	github.com/wsxiaoys/terminal v0.0.0-20160513160801-0940f3fc43a0
 )
diff --git a/go.sum b/go.sum
index f2d23bc..863759d 100644
--- a/go.sum
+++ b/go.sum
@@ -2,5 +2,7 @@ github.com/karlseguin/expect v1.0.1 h1:z4wy4npwwHSWKjGWH85WNJO42VQhovxTCZDSzhjo8
 github.com/karlseguin/expect v1.0.1/go.mod h1:zNBxMY8P21owkeogJELCLeHIt+voOSduHYTFUbwRAV8=
 github.com/karlseguin/expect v1.0.2-0.20190806010014-778a5f0c6003 h1:vJ0Snvo+SLMY72r5J4sEfkuE7AFbixEP2qRbEcum/wA=
 github.com/karlseguin/expect v1.0.2-0.20190806010014-778a5f0c6003/go.mod h1:zNBxMY8P21owkeogJELCLeHIt+voOSduHYTFUbwRAV8=
+github.com/karlseguin/expect v1.0.7 h1:OF4mqjblc450v8nKARBS5Q0AweBNR0A+O3VjjpxwBrg=
+github.com/karlseguin/expect v1.0.7/go.mod h1:lXdI8iGiQhmzpnnmU/EGA60vqKs8NbRNFnhhrJGoD5g=
 github.com/wsxiaoys/terminal v0.0.0-20160513160801-0940f3fc43a0 h1:3UeQBvD0TFrlVjOeLOBz+CPAI8dnbqNSVwUwRrkp7vQ=
 github.com/wsxiaoys/terminal v0.0.0-20160513160801-0940f3fc43a0/go.mod h1:IXCdmsXIht47RaVFLEdVnh1t+pgYtTAhQGj73kz+2DM=
diff --git a/layeredcache.go b/layeredcache.go
index d36d690..aaac25e 100644
--- a/layeredcache.go
+++ b/layeredcache.go
@@ -286,7 +286,13 @@ func (c *LayeredCache) doPromote(item *Item) bool {
 func (c *LayeredCache) gc() int {
 	element := c.list.Back()
 	dropped := 0
-	for i := 0; i < c.itemsToPrune; i++ {
+	itemsToPrune := int64(c.itemsToPrune)
+
+	if min := c.size - c.maxSize; min > itemsToPrune {
+		itemsToPrune = min
+	}
+
+	for i := int64(0); i < itemsToPrune; i++ {
 		if element == nil {
 			return dropped
 		}
diff --git a/layeredcache_test.go b/layeredcache_test.go
index 390b4e4..cdb1106 100644
--- a/layeredcache_test.go
+++ b/layeredcache_test.go
@@ -235,8 +235,9 @@ func (_ LayeredCacheTests) ResizeOnTheFly() {
 	for i := 0; i < 5; i++ {
 		cache.Set(strconv.Itoa(i), "a", i, time.Minute)
 	}
+	time.Sleep(time.Millisecond * 20)
 	cache.SetMaxSize(3)
-	time.Sleep(time.Millisecond * 10)
+	time.Sleep(time.Millisecond * 20)
 	Expect(cache.GetDropped()).To.Equal(2)
 	Expect(cache.Get("0", "a")).To.Equal(nil)
 	Expect(cache.Get("1", "a")).To.Equal(nil)
@@ -245,7 +246,7 @@ func (_ LayeredCacheTests) ResizeOnTheFly() {
 	Expect(cache.Get("4", "a").Value()).To.Equal(4)
 
 	cache.Set("5", "a", 5, time.Minute)
-	time.Sleep(time.Millisecond * 5)
+	time.Sleep(time.Millisecond * 10)
 	Expect(cache.GetDropped()).To.Equal(1)
 	Expect(cache.Get("2", "a")).To.Equal(nil)
 	Expect(cache.Get("3", "a").Value()).To.Equal(3)