diff --git a/filament/backend/src/vulkan/caching/VulkanDescriptorSetManager.h b/filament/backend/src/vulkan/caching/VulkanDescriptorSetManager.h
index 2735e5062b1..1bbf6e29b04 100644
--- a/filament/backend/src/vulkan/caching/VulkanDescriptorSetManager.h
+++ b/filament/backend/src/vulkan/caching/VulkanDescriptorSetManager.h
@@ -94,7 +94,7 @@ class VulkanDescriptorSetManager {
     struct {
         VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
         DescriptorSetMask setMask;
-        DescriptorSetArray boundSets;
+        DescriptorSetArray boundSets = {};
     } mLastBoundInfo;
 };