diff --git a/src/main.cpp b/src/main.cpp
index a5ab015f3..8670c8871 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4158,10 +4158,6 @@ CBlockTemplate* CreateNewBlock(CReserveKey& reservekey)
     // Limit to betweeen 1K and MAX_BLOCK_SIZE-1K for sanity:
     nBlockMaxSize = std::max((unsigned int)1000, std::min((unsigned int)(MAX_BLOCK_SIZE-1000), nBlockMaxSize));
 
-    // Special compatibility rule before 15 May: limit size to 500,000 bytes:
-    if (GetAdjustedTime() < 1368576000)
-        nBlockMaxSize = std::min(nBlockMaxSize, (unsigned int)(MAX_BLOCK_SIZE_GEN));
-
     // How much of the block should be dedicated to high-priority transactions,
     // included regardless of the fees they pay
     unsigned int nBlockPrioritySize = GetArg("-blockprioritysize", 27000);