diff --git a/cmd/geth/retesteth.go b/cmd/geth/retesteth.go
index f42431238a..6e563190d9 100644
--- a/cmd/geth/retesteth.go
+++ b/cmd/geth/retesteth.go
@@ -513,6 +513,7 @@ func (api *RetestethAPI) mineBlock() error {
 				txCount++
 				if gasPool.Gas() < params.TxGas {
 					blockFull = true
+					break
 				}
 			} else {
 				break // Gap in the nonces