diff --git a/hook.sh b/hook.sh
index d98297835..7fac4a834 100755
--- a/hook.sh
+++ b/hook.sh
@@ -4,7 +4,7 @@ echo "#!/bin/sh\n" > $FILE
 # Exit on any error
 echo "set -e" >> $FILE
 # Run release build
-echo "cargo build --release --features dev" >> $FILE
+echo "cargo build --features dev" >> $FILE
 # Build tests
 echo "cargo test --no-run --features dev \\" >> $FILE
 echo "	-p ethash -p ethcore-util -p ethcore -p ethsync -p ethcore-rpc -p parity -p ethminer -p ethcore-webapp" >> $FILE