diff --git a/man2/modify_ldt.2 b/man2/modify_ldt.2
index 0db6efea4..ae979ed41 100644
--- a/man2/modify_ldt.2
+++ b/man2/modify_ldt.2
@@ -79,7 +79,7 @@ structure is defined in \fI<asm/ldt.h>\fP as:
 .EX
 struct user_desc {
     unsigned int  entry_number;
-    unsigned long base_addr;
+    unsigned int  base_addr;
     unsigned int  limit;
     unsigned int  seg_32bit:1;
     unsigned int  contents:2;
diff --git a/man2/set_thread_area.2 b/man2/set_thread_area.2
index b2f0882ed..3b6b22efd 100644
--- a/man2/set_thread_area.2
+++ b/man2/set_thread_area.2
@@ -67,7 +67,7 @@ to a structure of the following type:
 .EX
 struct user_desc {
     unsigned int  entry_number;
-    unsigned long base_addr;
+    unsigned int  base_addr;
     unsigned int  limit;
     unsigned int  seg_32bit:1;
     unsigned int  contents:2;