diff --git a/wezterm.spec b/wezterm.spec
index 5d8e3e6..7ff0746 100644
--- a/wezterm.spec
+++ b/wezterm.spec
@@ -16,6 +16,8 @@
 #
 
 
+%global rustflags -Clink-arg=-Wl,-z,relro,-z,now -C debuginfo=2
+
 Name:           wezterm
 Version:        20220624.141144.bd1b7c5d+git307
 Release:        0
@@ -28,7 +30,7 @@ Source2:        cargo_config
 Requires:       terminfo
 BuildRequires:  Mesa-libEGL-devel
 BuildRequires:  rust >= 1.43
-%if 0%{?suse_version} >= 1500
+%if 0%{?suse_version} > 1500
 BuildRequires:  cargo-packaging
 %else
 BuildRequires:  cargo
@@ -69,10 +71,12 @@ cp %{SOURCE2} .cargo/config
 tic -vvv -x -o terminfo termwiz/data/%{name}.terminfo
 
 %build
-%if 0%{?suse_version} < 1500
-  cargo build --offline --release --all-features
+%if 0%{?suse_version} > 1500
+%{cargo_build}
 %else
-  %{cargo_build}
+export CARGO_FEATURE_VENDORED=1
+export RUSTFLAGS='%{rustflags}'
+cargo build --offline --release --all-features -j$(nproc)
 %endif
 
 %install