diff --git a/src/cryptonote_basic/miner.cpp b/src/cryptonote_basic/miner.cpp
index 6928a0ded..cd0943618 100644
--- a/src/cryptonote_basic/miner.cpp
+++ b/src/cryptonote_basic/miner.cpp
@@ -74,8 +74,8 @@ namespace cryptonote
     const command_line::arg_descriptor<bool>        arg_bg_mining_enable =  {"bg-mining-enable", "enable/disable background mining", true, true};
     const command_line::arg_descriptor<bool>        arg_bg_mining_ignore_battery =  {"bg-mining-ignore-battery", "if true, assumes plugged in when unable to query system power status", false, true};    
     const command_line::arg_descriptor<uint64_t>    arg_bg_mining_min_idle_interval_seconds =  {"bg-mining-min-idle-interval", "Specify min lookback interval in seconds for determining idle state", miner::BACKGROUND_MINING_DEFAULT_MIN_IDLE_INTERVAL_IN_SECONDS, true};
-    const command_line::arg_descriptor<uint8_t>     arg_bg_mining_idle_threshold_percentage =  {"bg-mining-idle-threshold", "Specify minimum avg idle percentage over lookback interval", miner::BACKGROUND_MINING_DEFAULT_IDLE_THRESHOLD_PERCENTAGE, true};
-    const command_line::arg_descriptor<uint8_t>     arg_bg_mining_miner_target_percentage =  {"bg-mining-miner-target", "Specificy maximum percentage cpu use by miner(s)", miner::BACKGROUND_MINING_DEFAULT_MINING_TARGET_PERCENTAGE, true};
+    const command_line::arg_descriptor<uint16_t>     arg_bg_mining_idle_threshold_percentage =  {"bg-mining-idle-threshold", "Specify minimum avg idle percentage over lookback interval", miner::BACKGROUND_MINING_DEFAULT_IDLE_THRESHOLD_PERCENTAGE, true};
+    const command_line::arg_descriptor<uint16_t>     arg_bg_mining_miner_target_percentage =  {"bg-mining-miner-target", "Specificy maximum percentage cpu use by miner(s)", miner::BACKGROUND_MINING_DEFAULT_MINING_TARGET_PERCENTAGE, true};
   }