diff --git a/src/d3d11/d3d11_annotation.cpp b/src/d3d11/d3d11_annotation.cpp
index 010acdd8..72d6134e 100644
--- a/src/d3d11/d3d11_annotation.cpp
+++ b/src/d3d11/d3d11_annotation.cpp
@@ -36,6 +36,8 @@ namespace dxvk {
     if (!m_container->IsAnnotationEnabled())
       return -1;
 
+    D3D10DeviceLock lock = m_container->LockContext();
+
     m_container->EmitCs([labelName = dxvk::str::fromws(Name)](DxvkContext *ctx) {
       VkDebugUtilsLabelEXT label;
       label.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_LABEL_EXT;
@@ -57,6 +59,8 @@ namespace dxvk {
     if (!m_container->IsAnnotationEnabled())
       return -1;
 
+    D3D10DeviceLock lock = m_container->LockContext();
+
     m_container->EmitCs([](DxvkContext *ctx) {
       ctx->endDebugLabel();
     });
@@ -70,6 +74,8 @@ namespace dxvk {
     if (!m_container->IsAnnotationEnabled())
       return;
 
+    D3D10DeviceLock lock = m_container->LockContext();
+
     m_container->EmitCs([labelName = dxvk::str::fromws(Name)](DxvkContext *ctx) {
       VkDebugUtilsLabelEXT label;
       label.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_LABEL_EXT;