diff --git a/src/bundler/linker_context/doStep5.zig b/src/bundler/linker_context/doStep5.zig
index a1df034bac..a2c55e745e 100644
--- a/src/bundler/linker_context/doStep5.zig
+++ b/src/bundler/linker_context/doStep5.zig
@@ -7,7 +7,7 @@ pub fn doStep5(c: *LinkerContext, source_index_: Index, _: usize) void {
     defer trace.end();
 
     const id = source_index;
-    if (id > c.graph.meta.len) return;
+    if (id >= c.graph.meta.len) return;
 
     const worker: *ThreadPool.Worker = ThreadPool.Worker.get(@fieldParentPtr("linker", c));
     defer worker.unget();
diff --git a/src/install/postinstall_optimizer.zig b/src/install/postinstall_optimizer.zig
index d2ed846fb8..588d60ca5b 100644
--- a/src/install/postinstall_optimizer.zig
+++ b/src/install/postinstall_optimizer.zig
@@ -59,7 +59,7 @@ pub const PostinstallOptimizer = enum {
         // Loop through the list of optional dependencies with platform-specific constraints
         // Find a matching target-specific dependency.
         for (resolutions) |resolution| {
-            if (resolution > metas.len) continue;
+            if (resolution >= metas.len) continue;
             const meta: *const Meta = &metas[resolution];
             if (meta.arch == .all or meta.os == .all) continue;
             if (meta.arch.isMatch(target_cpu) and meta.os.isMatch(target_os)) {