diff --git a/lib/posix/posix_other.nim b/lib/posix/posix_other.nim
index 261550d96e..04071b75fe 100644
--- a/lib/posix/posix_other.nim
+++ b/lib/posix/posix_other.nim
@@ -546,7 +546,7 @@ else:
 when defined(linux) or defined(nimdoc):
   when defined(alpha) or defined(mips) or defined(mipsel) or
       defined(mips64) or defined(mips64el) or defined(parisc) or
-      defined(sparc) or defined(nimdoc):
+      defined(sparc) or defined(sparc64) or defined(nimdoc):
     const SO_REUSEPORT* = cint(0x0200)
       ## Multiple binding: load balancing on incoming TCP connections
       ## or UDP packets. (Requires Linux kernel > 3.9)
diff --git a/lib/system/platforms.nim b/lib/system/platforms.nim
index 80a21cd0b7..1c35eeb0d0 100644
--- a/lib/system/platforms.nim
+++ b/lib/system/platforms.nim
@@ -20,6 +20,7 @@ type
     powerpc64,                 ## 64 bit PowerPC
     powerpc64el,               ## Little Endian 64 bit PowerPC
     sparc,                     ## Sparc based processor
+    sparc64,                   ## 64-bit Sparc based processor
     ia64,                      ## Intel Itanium
     amd64,                     ## x86_64 (AMD64); 64 bit x86 compatible CPU
     mips,                      ## Mips based processor
@@ -76,6 +77,7 @@ const
                elif defined(powerpc64): CpuPlatform.powerpc64
                elif defined(powerpc64el): CpuPlatform.powerpc64el
                elif defined(sparc): CpuPlatform.sparc
+               elif defined(sparc64): CpuPlatform.sparc64
                elif defined(ia64): CpuPlatform.ia64
                elif defined(amd64): CpuPlatform.amd64
                elif defined(mips): CpuPlatform.mips