diff --git a/Setup-Computer-Debian-11.md b/Setup-Computer-Debian-11.md
index 61b86d8..e81bfe9 100644
--- a/Setup-Computer-Debian-11.md
+++ b/Setup-Computer-Debian-11.md
@@ -227,7 +227,7 @@ tar xf hdf5-1.14.0.tar.gz
 cd hdf5-1.14.0
 mkdir build 
 cd build 
-cmake -DHDF5_BUILD_CPP_LIB=1 -DPREFIX=/usr/local ..
+cmake -DHDF5_BUILD_CPP_LIB=1 -DCMAKE_INSTALL_PREFIX=/usr/local ..
 make
 sudo make install
 ```