diff --git a/compiler/build/src/link.rs b/compiler/build/src/link.rs
index 5f47b533da..a32c0378c5 100644
--- a/compiler/build/src/link.rs
+++ b/compiler/build/src/link.rs
@@ -84,6 +84,9 @@ pub fn build_zig_host_native(
             // include libc
             "--library",
             "c",
+            "-fPIC",
+            "-O",
+            "ReleaseSafe",
         ])
         .output()
         .unwrap()
@@ -157,6 +160,9 @@ pub fn build_zig_host_native(
             // include libc
             "--library",
             "c",
+            "-fPIC",
+            "-O",
+            "ReleaseSafe",
         ])
         .output()
         .unwrap()
@@ -198,6 +204,9 @@ pub fn build_zig_host_wasm32(
             "i386-linux-musl",
             // "wasm32-wasi",
             // "-femit-llvm-ir=/home/folkertdev/roc/roc/examples/benchmarks/platform/host.ll",
+            "-fPIC",
+            "-O",
+            "ReleaseSafe",
         ])
         .output()
         .unwrap()
@@ -258,6 +267,8 @@ pub fn rebuild_host(target: &Triple, host_input_path: &Path) {
             .env_clear()
             .env("PATH", &env_path)
             .args(&[
+                "-O2",
+                "-fPIC",
                 "-c",
                 c_host_src.to_str().unwrap(),
                 "-o",
diff --git a/compiler/build/src/program.rs b/compiler/build/src/program.rs
index 511a13e276..d6b2e0cc77 100644
--- a/compiler/build/src/program.rs
+++ b/compiler/build/src/program.rs
@@ -273,7 +273,7 @@ pub fn gen_from_mono_module(
         use target_lexicon::Architecture;
         match target.architecture {
             Architecture::X86_64 | Architecture::Aarch64(_) => {
-                let reloc = RelocMode::Default;
+                let reloc = RelocMode::PIC;
                 let model = CodeModel::Default;
                 let target_machine =
                     target::target_machine(target, convert_opt_level(opt_level), reloc, model)