diff --git a/man2/mprotect.2 b/man2/mprotect.2
index 47d250303..885238a8d 100644
--- a/man2/mprotect.2
+++ b/man2/mprotect.2
@@ -326,8 +326,7 @@ handler(int sig, siginfo_t *si, void *unused)
        Nevertheless, we use printf() here as a simple way of
        showing that the handler was called. */
 
-    printf("Got SIGSEGV at address: %#lx\en",
-            (long) si\->si_addr);
+    printf("Got SIGSEGV at address: %p\en", si\->si_addr);
     exit(EXIT_FAILURE);
 }
 
@@ -354,7 +353,7 @@ main(int argc, char *argv[])
     if (buffer == NULL)
         handle_error("memalign");
 
-    printf("Start of region:        %#lx\en", (long) buffer);
+    printf("Start of region:        %p\en", buffer);
 
     if (mprotect(buffer + pagesize * 2, pagesize,
                 PROT_READ) == \-1)