1 files changed, 1 insertions, 1 deletions
diff --git a/src/txmempool.h b/src/txmempool.h
index c3bc86cc04..51b8af3286 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -21,6 +21,7 @@
 #include <coins.h>
 #include <consensus/amount.h>
 #include <indirectmap.h>
+#include <kernel/cs_main.h>
 #include <kernel/mempool_entry.h>
 #include <policy/feerate.h>
 #include <policy/packages.h>
@@ -39,7 +40,6 @@
 class CBlockIndex;
 class CChain;
 class Chainstate;
-extern RecursiveMutex cs_main;
 
 /** Fake height value used in Coin to signify they are only in the memory pool (since 0.8) */
 static const uint32_t MEMPOOL_HEIGHT = 0x7FFFFFFF;