diff --git a/build_x64.sh b/build_x64.sh
index 5fb31ec..36a11e1 100755
--- a/build_x64.sh
+++ b/build_x64.sh
@@ -1,5 +1,5 @@
-cargo build --target x86_64-unknown-linux-gnu --package idmanglercli --bin idmanglercli
-cargo build --target x86_64-pc-windows-gnu --package idmanglercli --bin idmanglercli
+cargo build --target x86_64-unknown-linux-gnu --package idmanglercli --bin idmanglercli --release
+cargo build --target x86_64-pc-windows-gnu --package idmanglercli --bin idmanglercli --release
 
 mkdir -p product