diff --git a/libcxxabi/src/private_typeinfo.cpp b/libcxxabi/src/private_typeinfo.cpp
index 67a5a62dc802..30340a173cf3 100644
--- a/libcxxabi/src/private_typeinfo.cpp
+++ b/libcxxabi/src/private_typeinfo.cpp
@@ -651,7 +651,7 @@ __dynamic_cast(const void *static_ptr, const __class_type_info *static_type,
             // We get here only if there is some kind of visibility problem
             //   in client code.
             syslog(LOG_ERR, "dynamic_cast error 1: Both of the following type_info's "
-                    "should have public visibility.  At least one of them is hidden. %s" 
+                    "should have public visibility. At least one of them is hidden. %s"
                     ", %s.\n", static_type->name(), dynamic_type->name());
             // Redo the search comparing type_info's using strcmp
             info = {dst_type, static_ptr, static_type, src2dst_offset, 0};
@@ -674,7 +674,8 @@ __dynamic_cast(const void *static_ptr, const __class_type_info *static_type,
             info.path_dynamic_ptr_to_static_ptr == unknown)
         {
             syslog(LOG_ERR, "dynamic_cast error 2: One or more of the following type_info's "
-                            "has hidden visibility.  They should all have public visibility.  "
+                            "has hidden visibility or is defined in more than one translation "
+                            "unit. They should all have public visibility. "
                             "%s, %s, %s.\n", static_type->name(), dynamic_type->name(),
                     dst_type->name());
             // Redo the search comparing type_info's using strcmp