diff --git a/src/main_poolminer.cpp b/src/main_poolminer.cpp
index 44d62c4a..e0d959c3 100644
--- a/src/main_poolminer.cpp
+++ b/src/main_poolminer.cpp
@@ -578,6 +578,7 @@ int main(int argc, char **argv)
   ParseParameters(argc, argv);
 
   socket_to_server = NULL;
+  pool_share_minimum = (unsigned int)GetArg("-poolshare", 7);
   thread_num_max = GetArg("-genproclimit", 1); // what about boost's hardware_concurrency() ?
   fee_to_pay = GetArg("-poolfee", 3);
   miner_id = GetArg("-minerid", 0);
diff --git a/src/prime.cpp b/src/prime.cpp
index 6d85688a..74581123 100644
--- a/src/prime.cpp
+++ b/src/prime.cpp
@@ -14,6 +14,7 @@ std::vector<unsigned int> vPrimes;
 unsigned int nSieveSize = nDefaultSieveSize;
 unsigned int nSievePercentage = nDefaultSievePercentage;
 unsigned int nSieveExtensions = nDefaultSieveExtensions;
+unsigned int pool_share_minimum = (unsigned int)GetArg("-poolshare", 7);
 
 static unsigned int int_invert(unsigned int a, unsigned int nPrime);
 
@@ -712,7 +713,7 @@ static bool ProbablePrimeChainTestFast(const mpz_class& mpzPrimeChainOrigin, CPr
         }
     }
 
-    return (!poolmining && (nChainLength >= nBits)) || (poolmining && (TargetGetLength(nChainLength) >= POOL_SHARE_MINIMUM));
+    return (!poolmining && (nChainLength >= nBits)) || (poolmining && (TargetGetLength(nChainLength) >= pool_share_minimum));
 }
 
 // Sieve for mining
diff --git a/src/prime.h b/src/prime.h
index e1894438..077712a6 100644
--- a/src/prime.h
+++ b/src/prime.h
@@ -15,7 +15,7 @@
 /* POOL ADDON */
 /**************/
 
-static const unsigned int POOL_SHARE_MINIMUM = 7;
+extern unsigned int pool_share_minimum;
 extern size_t thread_num_max;
 
 class CBlockProvider {
diff --git a/src/primeminer b/src/primeminer
new file mode 100755
index 00000000..77ddf3e6
Binary files /dev/null and b/src/primeminer differ