diff --git a/adapters/p2p2core/block.go b/adapters/p2p2core/block.go
index 62acad43e..e593a3d6c 100644
--- a/adapters/p2p2core/block.go
+++ b/adapters/p2p2core/block.go
@@ -40,8 +40,8 @@ func AdaptBlockHeader(h *spec.SignedBlockHeader, eventsBloom *bloom.BloomFilter)
 			PriceInWei: AdaptUint128(h.DataGasPriceWei),
 			PriceInFri: AdaptUint128(h.DataGasPriceFri),
 		},
-		GasPrice:     AdaptUint128(h.GasPriceFri),
-		GasPriceSTRK: AdaptUint128(h.GasPriceWei),
+		GasPrice:     AdaptUint128(h.GasPriceWei),
+		GasPriceSTRK: AdaptUint128(h.GasPriceFri),
 	}
 }