diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index 9ab8b845cbb..7b6a1f98d66 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -4439,7 +4439,7 @@ linux_nat_target::linux_nat_target ()
 
 /* See linux-nat.h.  */
 
-int
+bool
 linux_nat_get_siginfo (ptid_t ptid, siginfo_t *siginfo)
 {
   int pid = get_ptrace_pid (ptid);
@@ -4449,9 +4449,9 @@ linux_nat_get_siginfo (ptid_t ptid, siginfo_t *siginfo)
   if (errno != 0)
     {
       memset (siginfo, 0, sizeof (*siginfo));
-      return 0;
+      return false;
     }
-  return 1;
+  return true;
 }
 
 /* See nat/linux-nat.h.  */
diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index a9b91a5e908..576924395e7 100644
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -330,8 +330,8 @@ extern void linux_unstop_all_lwps (void);
 void linux_nat_switch_fork (ptid_t new_ptid);
 
 /* Store the saved siginfo associated with PTID in *SIGINFO.
-   Return 1 if it was retrieved successfully, 0 otherwise (*SIGINFO is
+   Return true if it was retrieved successfully, false otherwise (*SIGINFO is
    uninitialized in such case).  */
-int linux_nat_get_siginfo (ptid_t ptid, siginfo_t *siginfo);
+bool linux_nat_get_siginfo (ptid_t ptid, siginfo_t *siginfo);
 
 #endif /* LINUX_NAT_H */