diff --git a/debian/rules b/debian/rules
index a617666..7c54a18 100755
--- a/debian/rules
+++ b/debian/rules
@@ -3,8 +3,9 @@
 # -lto because I use CMake's LTO support
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all optimize=+all,-lto qa=+all
 
-# added by qa=+bug, triggers some false positives
-export DEB_CXXFLAGS_MAINT_STRIP = -Werror=array-bounds
+# -Werror=array-bounds is added by qa=+bug, triggers some false positives
+# -O2 is stripped because CMake already passes -O3
+export DEB_CXXFLAGS_MAINT_STRIP = -Werror=array-bounds -O2
 
 # yuzu requires CX16 instructions (CMPXCHG16B) to build, and they are
 # "only" available on Intel Core 2 or newer CPUs. The only way I know to