diff --git a/src/amdemod.rs b/src/amdemod.rs
index bfca6a6..7e85a86 100644
--- a/src/amdemod.rs
+++ b/src/amdemod.rs
@@ -1,5 +1,4 @@
 use num::traits::Float;
-use std::iter::FromIterator;
 
 use super::error::DspError;
 
diff --git a/src/firfilter.rs b/src/firfilter.rs
index 03fe124..9a2707b 100644
--- a/src/firfilter.rs
+++ b/src/firfilter.rs
@@ -1,5 +1,4 @@
 use num::traits::Num;
-use std::iter::FromIterator;
 
 use super::error::DspError;
 
diff --git a/src/multiply.rs b/src/multiply.rs
index ac8a22c..7d62010 100644
--- a/src/multiply.rs
+++ b/src/multiply.rs
@@ -1,5 +1,4 @@
 use num::traits::Num;
-use std::iter::FromIterator;
 
 use super::error::DspError;
 
diff --git a/src/resamplers.rs b/src/resamplers.rs
index 6dd9549..2242193 100644
--- a/src/resamplers.rs
+++ b/src/resamplers.rs
@@ -1,5 +1,4 @@
 use num::traits::{Num, NumCast};
-use std::iter::FromIterator;
 
 use super::error::DspError;