diff --git a/stage0/intern_pool.h b/stage0/intern_pool.h
index 8b9c41c269..bb564a208c 100644
--- a/stage0/intern_pool.h
+++ b/stage0/intern_pool.h
@@ -389,7 +389,7 @@ typedef struct {
     bool is_const;
 } Nav;
 
-#define IP_MAX_NAVS 4096
+#define IP_MAX_NAVS 16384
 
 // --- Function declarations ---
 
diff --git a/stage0/zig0.c b/stage0/zig0.c
index 344f6248f4..4fe140ea31 100644
--- a/stage0/zig0.c
+++ b/stage0/zig0.c
@@ -117,6 +117,7 @@ int zig0RunFile(const char* fname, bool verbose_air, bool verbose_intern_pool,
     // Derive module_root: walk up from source_dir to find the repo root.
     // For paths like .../lib/compiler_rt/neghf2.zig, module_root is the
     // directory containing "lib/". Heuristic: strip /lib/... suffix.
+    // Also handles relative paths like "lib/compiler_rt" (no leading /).
     char module_root[1024] = { 0 };
     {
         const char* lib_pos = strstr(source_dir, "/lib/");
@@ -126,6 +127,11 @@ int zig0RunFile(const char* fname, bool verbose_air, bool verbose_intern_pool,
                 len = sizeof(module_root) - 1;
             memcpy(module_root, source_dir, len);
             module_root[len] = '\0';
+        } else if (strncmp(source_dir, "lib/", 4) == 0
+            || strncmp(source_dir, "lib", 4) == 0) {
+            // Relative path starting with "lib/" — module_root is "."
+            module_root[0] = '.';
+            module_root[1] = '\0';
         }
     }