diff --git a/include/curl/system.h b/include/curl/system.h
index 589b21dbc8..00bd638ce4 100644
--- a/include/curl/system.h
+++ b/include/curl/system.h
@@ -36,13 +36,10 @@
  * curl_off_t
  * ----------
  *
- * For any given platform/compiler curl_off_t must be typedef'ed to a 64-bit
+ * For any given platform/compiler curl_off_t MUST be typedef'ed to a 64-bit
  * wide signed integral data type. The width of this data type must remain
  * constant and independent of any possible large file support settings.
  *
- * As an exception to the above, curl_off_t shall be typedef'ed to a 32-bit
- * wide signed integral data type if there is no 64-bit type.
- *
  * As a general rule, curl_off_t shall not be mapped to off_t. This rule shall
  * only be violated if off_t is the only 64-bit data type available and the
  * size of off_t is independent of large file support settings. Keep your