diff --git a/README.md b/README.md
index 85dbf8b..88a8d57 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ Util:
 ### Build
 ```sh
 cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:PATH=/usr -S . -B ./build
-cmake --build ./build --config Release --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
+cmake --build ./build --config Release --target all -j`nproc 2>/dev/null || getconf _NPROCESSORS_CONF`
 ```
 
 Install with: