diff --git a/python3.spec b/python3.spec
index 6da98d2c977d515d8165d7073733cbf1c33823e7..a8dcd91b81e8edde7a44e1a9b5190abf125ad82c 100644
--- a/python3.spec
+++ b/python3.spec
@@ -278,7 +278,8 @@ pushd ${DebugBuildDir}
 %endif
 %endif
   --without-ensurepip \
-  --with-pydebug
+  --with-pydebug \
+  --with-lto
 
 %make_build EXTRA_CFLAGS="$CFLAGS -Og"
 
@@ -308,6 +309,7 @@ pushd ${OptimizedBuildDir}
 %endif
 %endif
   --without-ensurepip \
+  --with-lto \
   %{optimizations_flag}
 
 %make_build EXTRA_CFLAGS="$CFLAGS"