diff --git a/.cargo/config.toml b/.cargo/config.toml
index 043adf6b3..d87d85027 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,6 +1,6 @@
 [build]
 # v0 mangling scheme provides more detailed backtraces around closures
-rustflags = ["-C", "symbol-mangling-version=v0", "--cfg", "tokio_unstable"]
+rustflags = ["-C", "symbol-mangling-version=v0", "--cfg", "tokio_unstable", "-Zshare-generics=y"]
 
 [alias]
 xtask = "run --package xtask --"