diff --git a/build_files/build_environment/CMakeLists.txt b/build_files/build_environment/CMakeLists.txt
index c21ed826736..e4fe7d90176 100644
--- a/build_files/build_environment/CMakeLists.txt
+++ b/build_files/build_environment/CMakeLists.txt
@@ -91,7 +91,11 @@ include(cmake/openvdb.cmake)
 include(cmake/python.cmake)
 include(cmake/python_site_packages.cmake)
 include(cmake/numpy.cmake)
-include(cmake/pugixml.cmake)
+if(UNIX AND NOT APPLE)
+  # Rely on PugiXML compiled with OpenImageIO
+else()
+  include(cmake/pugixml.cmake)
+endif()
 
 if(WITH_WEBP)
   include(cmake/webp.cmake)
diff --git a/build_files/build_environment/cmake/osl.cmake b/build_files/build_environment/cmake/osl.cmake
index 7b5909e3700..b8268f90c33 100644
--- a/build_files/build_environment/cmake/osl.cmake
+++ b/build_files/build_environment/cmake/osl.cmake
@@ -81,11 +81,6 @@ if(WIN32)
     ${OSL_EXTRA_ARGS}
     -DPUGIXML_HOME=${LIBDIR}/pugixml
   )
-elseif(UNIX AND NOT APPLE)
-  set(OSL_EXTRA_ARGS
-    ${OSL_EXTRA_ARGS}
-    -DPUGIXML_HOME=${LIBDIR}/pugixml
-  )
 elseif(APPLE)
   # Make symbol hiding consistent with OIIO which defaults to OFF,
   # avoids linker warnings on macOS
@@ -116,9 +111,17 @@ add_dependencies(
   external_zlib
   external_flexbison
   external_openimageio
-  external_pugixml
 )
 
+if(UNIX AND NOT APPLE)
+  # Rely on PugiXML compiled with OpenImageIO
+else()
+  add_dependencies(
+    external_osl
+    external_pugixml
+  )
+endif()
+
 if(WIN32)
   if(BUILD_MODE STREQUAL Release)
     ExternalProject_Add_Step(external_osl after_install