diff --git a/src/policy/policy.h b/src/policy/policy.h
index 4f9354e36..f2bcc73ab 100644
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -18,7 +18,7 @@ class CCoinsViewCache;
 static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000;
 static const unsigned int DEFAULT_BLOCK_MIN_SIZE = 0;
 /** Default for -blockprioritysize, maximum space for zero/low-fee transactions **/
-static const unsigned int DEFAULT_BLOCK_PRIORITY_SIZE = 0;
+static const unsigned int DEFAULT_BLOCK_PRIORITY_SIZE = 10000; // was 50000 in 0.12.0 and it is 0 in Bitcoin since 0.12
 /** The maximum size for transactions we're willing to relay/mine */
 static const unsigned int MAX_STANDARD_TX_SIZE = 100000;
 /** Maximum number of signature check operations in an IsStandard() P2SH script */