diff --git a/portage/env/gcc-basic.conf b/portage/env/gcc-basic.conf
index f000262..ac467c0 100644
--- a/portage/env/gcc-basic.conf
+++ b/portage/env/gcc-basic.conf
@@ -3,7 +3,7 @@
 # Copyright 2022-2023 Inference
 # SPDX-License-Identifier: BSD-3-Clause-Clear
 
-# Version: 0.0.2.2
+# Version: 1.0.0.3
 
 
 # Toolchain
@@ -23,7 +23,7 @@ STRIP="strip"
 
 # Flags
 ## Compiler flags
-CFLAGS="-march=znver3 -O2 -pipe -U__gnu_linux__"
-CXXFLAGS="-march=znver3 -O2 -pipe"
+CFLAGS="-march=znver3 -mtune=znver3 -O2 -pipe -U__gnu_linux__"
+CXXFLAGS="-march=znver3 -mtune=znver3 -O2 -pipe"
 ## Linker flags
 LDFLAGS="-Wl,-O2"