diff --git a/cmd/v/help/build-c.txt b/cmd/v/help/build-c.txt
index b48e6e7b5f..c1aa57aba1 100644
--- a/cmd/v/help/build-c.txt
+++ b/cmd/v/help/build-c.txt
@@ -7,10 +7,6 @@ For help regarding building an executable, see `v help build`.
 
 These build flags are enabled on `build` and `run` as long as the backend is set to `c`:
 
-   -arch <architecture>
-      Change the architecture that V will tell the C compiler to build.
-      List of supported architectures: `x86` and `x64` (default).
-
    -cc <compiler>
       Change the C compiler V invokes to the specified compiler.
       The C compiler is required to support C99.
@@ -41,10 +37,6 @@ These build flags are enabled on `build` and `run` as long as the backend is set
    -live
       Build the executable with live capabilities (`[live]`).
 
-   -manual-free
-      Enable manually freeing on all V code. This will cause memory leaks in vlib.
-      Currently enabled until a stable auto-free system is in place.
-
    -os <os>, -target-os <os>
       Change the target OS that V tries to compile for.
       By default, the target OS is the host system.