diff --git a/libs/vkd3d-shader/vkd3d_shader.map b/libs/vkd3d-shader/vkd3d_shader.map
index 8a596a80..a64b98e7 100644
--- a/libs/vkd3d-shader/vkd3d_shader.map
+++ b/libs/vkd3d-shader/vkd3d_shader.map
@@ -1,6 +1,7 @@
 VKD3D_1_0
 {
 global:
+    vkd3d_shader_build_varying_map;
     vkd3d_shader_compile;
     vkd3d_shader_convert_root_signature;
     vkd3d_shader_find_signature_element;