diff --git a/pxr/imaging/rprUsd/config.h b/pxr/imaging/rprUsd/config.h
index 9e0b91009..fd828cfff 100644
--- a/pxr/imaging/rprUsd/config.h
+++ b/pxr/imaging/rprUsd/config.h
@@ -19,6 +19,7 @@ limitations under the License.
 
 #include <mutex>
 #include <memory>
+#include <string>
 
 PXR_NAMESPACE_OPEN_SCOPE