diff --git a/lib_com/options.h b/lib_com/options.h
index 8171bdec930d790d42d6918da7c559b591170fed..03117e585c2ecada09ee930cb3b57cb0e0ee2ec9 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -83,7 +83,7 @@
 #define FIX_APA_EXECS_SCALING                                /* VA: fix scaling of JBM APA buffer */
 #define FIX_2164_ASSERT_IN_OMASA_PREPROC_FOR_EDIT            /* Nokia: Issue 2164: Prevent overflow when calculating equalization coefficient for editing before clamping to safe range */
 #define FIX_BASOP_ASSERT_IN_TONAL_MDCT_PLC                   /* FhG: fix for issue 2165 - using saturating addition in tonal MDCT PLC function */
-#define OPT_2146_BASOP_UTIL_ADD_MANT32EXP                    /* Dlb: optimized version of BASOP_Util_Add_Mant32Exp() */
+/* #define OPT_2146_BASOP_UTIL_ADD_MANT32EXP */              /* Dlb: optimized version of BASOP_Util_Add_Mant32Exp() */
 #define FIX_2166_ASSERT_OSBA_PLC_STEREO_OUT                  /* FhG: fix for issue 2166 - add missing averaging factor 0.5 in for the sum of energies in function stereo_dft_dmx_swb_nrg_fx()*/
 
 #define FIX_1793_DEC_MC_TO_MONO_SCALING_ISSUE                /* FhG: Use dynamic Q factor for synth_fx and synthFB_fx to prevent overflow */