diff --git a/bin/build.sh b/bin/build.sh
index fb06c3b..f1d8631 100755
--- a/bin/build.sh
+++ b/bin/build.sh
@@ -1,5 +1,7 @@
 #!/bin/env sh
 
+set +e
+
 # check whether ninja is around (you better start running)
 if [ -x "$(command -v ninja)" ]; then
     generator="-G Ninja"
diff --git a/bin/gen_api_header.sh b/bin/gen_api_header.sh
index d4e93eb..31de3bc 100755
--- a/bin/gen_api_header.sh
+++ b/bin/gen_api_header.sh
@@ -1,4 +1,6 @@
 #!/bin/env sh
 # single header api generator with clang
 
+set +e
+
 clang -I./ -P -E -nostdinc -nobuiltininc -DTWN_NOT_C $TWNROOT/include/twn_game_api.h 2> /dev/null | clang-format
diff --git a/hooks b/hooks
index 7ccfb54..9b68538 100755
--- a/hooks
+++ b/hooks
@@ -6,3 +6,4 @@ set +e
 
 # TODO: prevent double hooking
 export PATH=$PATH:$(realpath $(dirname -- "${BASH_SOURCE[0]}")/bin/)
+export TWNROOT=$(realpath $(dirname -- "${BASH_SOURCE[0]}"))