diff --git a/src/GraphicsPipeline.hs b/src/GraphicsPipeline.hs
index 7b56129..13cbbeb 100644
--- a/src/GraphicsPipeline.hs
+++ b/src/GraphicsPipeline.hs
@@ -106,7 +106,7 @@ createRenderPass
           , Vk.dstSubpass    = 0
           , Vk.srcStageMask  = Vk.PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT
           , Vk.dstStageMask  = Vk.PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT
-          , Vk.srcAccessMask = bit 0
+          , Vk.srcAccessMask = Vk.ACCESS_MEMORY_READ_BIT
           , Vk.dstAccessMask = Vk.ACCESS_COLOR_ATTACHMENT_WRITE_BIT
           }
         subpassDepthDependency = Vk.zero
@@ -114,7 +114,7 @@ createRenderPass
           , Vk.dstSubpass    = 0
           , Vk.srcStageMask  =
             Vk.PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT .|. Vk.PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT
-          , Vk.srcAccessMask = bit 0
+          , Vk.srcAccessMask = Vk.ACCESS_MEMORY_READ_BIT
           , Vk.dstStageMask  =
             Vk.PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT .|. Vk.PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT
           , Vk.dstAccessMask = Vk.ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT