diff --git a/flake.nix b/flake.nix
index 8df05dc91263..b22cf56a9b5f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -46,7 +46,8 @@
 
       checks = forAllSystems (system: {
         tarball = jobs.${system}.tarball;
-      } // lib.optionalAttrs (self.legacyPackages.${system}.stdenv.isLinux) {
+        # Exclude power64 due to "libressl is not available on the requested hostPlatform" with hostPlatform being power64
+      } // lib.optionalAttrs (self.legacyPackages.${system}.stdenv.isLinux && !self.legacyPackages.${system}.targetPlatform.isPower64) {
         # Test that ensures that the nixosSystem function can accept a lib argument
         # Note: prefer not to extend or modify `lib`, especially if you want to share reusable modules
         #       alternatives include: `import` a file, or put a custom library in an option or in `_module.args.<libname>`
diff --git a/lib/systems/flake-systems.nix b/lib/systems/flake-systems.nix
index b1988c6a4fbb..a68580ff1407 100644
--- a/lib/systems/flake-systems.nix
+++ b/lib/systems/flake-systems.nix
@@ -16,12 +16,12 @@
   "armv6l-linux"
   "armv7l-linux"
   "i686-linux"
-  "mipsel-linux"
+  # "mipsel-linux" is excluded because it is not bootstrapped
 
   # Other platforms with sufficient support in stdenv which is not formally
   # mandated by their platform tier.
   "aarch64-darwin"
-  "armv5tel-linux"
+  # "armv5tel-linux" is excluded because it is not bootstrapped
   "powerpc64le-linux"
   "riscv64-linux"