diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1d42c30649..8035353069 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-05-15  Maciej W. Rozycki  <macro@mips.com>
+
+	* mips-linux-nat.c (mips_linux_nat_target::fetch_registers):
+	Supply the MIPS_ZERO_REGNUM register.
+
 2018-05-15  Maciej W. Rozycki  <macro@mips.com>
 
 	* mips-tdep.c (mask_address_var): Make variable static.
diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
index 4e0c51bd2d..b1dbb79852 100644
--- a/gdb/mips-linux-nat.c
+++ b/gdb/mips-linux-nat.c
@@ -416,7 +416,13 @@ mips_linux_nat_target::fetch_registers (struct regcache *regcache, int regnum)
   /* If we know, or just found out, that PTRACE_GETREGS does not work, fall
      back to PTRACE_PEEKUSER.  */
   if (!have_ptrace_regsets)
-    linux_nat_trad_target::fetch_registers (regcache, regnum);
+    {
+      linux_nat_trad_target::fetch_registers (regcache, regnum);
+
+      /* Fill the inaccessible zero register with zero.  */
+      if (regnum == MIPS_ZERO_REGNUM || regnum == -1)
+	regcache->raw_supply_zeroed (MIPS_ZERO_REGNUM);
+    }
 }
 
 /* Store REGNO (or all registers if REGNO == -1) to the target