diff --git a/ta_lib/momentum/src/macd.rs b/ta_lib/momentum/src/macd.rs
index 3c38fe3f..b0020268 100644
--- a/ta_lib/momentum/src/macd.rs
+++ b/ta_lib/momentum/src/macd.rs
@@ -12,7 +12,7 @@ pub fn macd(
     let macd_line = ema_fast
         .iter()
         .zip(&ema_slow)
-        .map(|(fast, slow)| match (fast, slow) {
+        .map(|(&fast, &slow)| match (fast, slow) {
             (Some(fast), Some(slow)) => Some(fast - slow),
             _ => None,
         })
@@ -29,7 +29,7 @@ pub fn macd(
     let histogram = macd_line
         .iter()
         .zip(&signal_line)
-        .map(|(macd, signal)| match (macd, signal) {
+        .map(|(&macd, &signal)| match (macd, signal) {
             (Some(macd), Some(signal)) => Some(macd - signal),
             _ => None,
         })
diff --git a/ta_lib/momentum/src/rsi.rs b/ta_lib/momentum/src/rsi.rs
index 61a72524..a3fb1694 100644
--- a/ta_lib/momentum/src/rsi.rs
+++ b/ta_lib/momentum/src/rsi.rs
@@ -22,7 +22,7 @@ pub fn rsi(data: &[f64], period: usize) -> Vec<Option<f64>> {
 
     let rsi = avg_gain
         .iter()
-        .zip(avg_loss.iter())
+        .zip(&avg_loss)
         .map(|(&gain, &loss)| match (gain, loss) {
             (Some(gain), Some(loss)) if gain + loss > 0.0 => {
                 let rs = gain / (loss + std::f64::EPSILON);