diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index a67ee90333..2c3833f3cf 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -962,7 +962,7 @@ include_directories(${INCLUDE_DIRECTORIES} ${OCC_INCLUDE_DIR} ${OPENCOLLADA_INCL
 if(NOT SCHEMA_VERSIONS)
     if(WASM_BUILD)
         # super arbitrarily try to keep size down at least a little bit
-        set(SCHEMA_VERSIONS "2x3" "4")
+        set(SCHEMA_VERSIONS "2x3" "4" "4x3_add2")
     else()
         set(SCHEMA_VERSIONS "2x3" "4" "4x1" "4x2" "4x3" "4x3_tc1" "4x3_add1" "4x3_add2")
     endif()