diff --git a/libc/loader/linux/aarch64/CMakeLists.txt b/libc/loader/linux/aarch64/CMakeLists.txt
--- a/libc/loader/linux/aarch64/CMakeLists.txt
+++ b/libc/loader/linux/aarch64/CMakeLists.txt
@@ -4,8 +4,10 @@
     start.cpp
   DEPENDS
     libc.config.linux.app_h
+    libc.include.errno
     libc.include.sys_syscall
     libc.src.__support.OSUtil.osutil
+    libc.src.errno.errno
   COMPILE_OPTIONS
     -fno-omit-frame-pointer
     -ffreestanding # To avoid compiler warnings about calling the main function.
diff --git a/libc/loader/linux/x86_64/CMakeLists.txt b/libc/loader/linux/x86_64/CMakeLists.txt
--- a/libc/loader/linux/x86_64/CMakeLists.txt
+++ b/libc/loader/linux/x86_64/CMakeLists.txt
@@ -4,9 +4,11 @@
     start.cpp
   DEPENDS
     libc.config.linux.app_h
+    libc.include.errno
     libc.include.sys_mman
     libc.include.sys_syscall
     libc.src.__support.OSUtil.osutil
+    libc.src.errno.errno
     libc.src.string.memory_utils.memcpy_implementation
   COMPILE_OPTIONS
     -fno-omit-frame-pointer