diff --git a/Cargo.toml b/Cargo.toml
index b583f5a..e499b23 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,9 @@ version      = "0.1.0"
 [lib]
 crate-type = ["cdylib"]
 
+[target.'cfg(unix)'.dependencies]
+tikv-jemallocator = { version = "0.6", features = ["disable_initial_exec_tls"] }
+
 [dependencies]
 bitcoin-payment-instructions = { version = "0.5.0", default-features = false, features = [
   "http",
diff --git a/src/lib.rs b/src/lib.rs
index be6d4b1..d5b6505 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,12 @@
 #![deny(clippy::all)]
 
+/// Use jemalloc to reduce memory fragmentation during channel monitor
+/// deserialization and node boot. glibc malloc fragments heavily with
+/// Rust's alloc patterns (not available on Windows).
+#[cfg(unix)]
+#[global_allocator]
+static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
+
 use std::{
   collections::{HashMap, HashSet},
   convert::TryFrom,