diff --git a/lib_com/options.h b/lib_com/options.h
index 222333bc33f7bf9e3756855525e6bce239b61f46..1db9d4c2cf099be944bb3e97e86d5b4816669ca4 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -158,6 +158,8 @@
 
 #define ALIGN_SID_SIZE                                  /* Issue 111: make all DTX modes use one SID frame bitrate (5.2 kbps) */
 
+#define FIX_135_MDCT_STEREO_MODE_UNINITIALIZED          /* Issue 135: fix uninitialized value usage in SBA MDCT-Stereo core with PLC */
+
 /* ################## End DEVELOPMENT switches ######################### */
 /* clang-format on */
 #endif
diff --git a/lib_dec/ivas_cpe_dec.c b/lib_dec/ivas_cpe_dec.c
index 313e0d6172d0a1ea572c92aa89520a7170f8f180..d034d08db6cdf2b1a155c5a2b25f00fe7f55eec1 100644
--- a/lib_dec/ivas_cpe_dec.c
+++ b/lib_dec/ivas_cpe_dec.c
@@ -823,6 +823,12 @@ ivas_error create_cpe_dec(
         set_s( hCPE->hStereoMdct->prev_ms_mask[0], 0, MAX_SFB );
         set_s( hCPE->hStereoMdct->prev_ms_mask[1], 0, MAX_SFB );
         hCPE->hStereoMdct->lastCoh = 1.f;
+#ifdef FIX_135_MDCT_STEREO_MODE_UNINITIALIZED
+        hCPE->hStereoMdct->mdct_stereo_mode[0] = SMDCT_DUAL_MONO;
+        hCPE->hStereoMdct->mdct_stereo_mode[1] = SMDCT_DUAL_MONO;
+        hCPE->hStereoMdct->IGFStereoMode[0] = -1;
+        hCPE->hStereoMdct->IGFStereoMode[1] = -1;
+#endif
     }
 
     /*-----------------------------------------------------------------*
diff --git a/lib_dec/ivas_stereo_mdct_core_dec.c b/lib_dec/ivas_stereo_mdct_core_dec.c
index d626d1ca6abc26ae8625f16978e0ea92df91727e..32e9fe103cf66de8b24de30b7cbc1705faaf8232 100644
--- a/lib_dec/ivas_stereo_mdct_core_dec.c
+++ b/lib_dec/ivas_stereo_mdct_core_dec.c
@@ -218,11 +218,13 @@ void stereo_mdct_core_dec(
     initMdctStereoDecData( hCPE->hStereoMdct, sts[0]->igf, sts[0]->hIGFDec->igfData.igfInfo.grid, hCPE->element_brate, sts[0]->bwidth );
 
     hCPE->hStereoMdct->isSBAStereoMode = ( ( st_ivas->ivas_format == SBA_FORMAT ) && ( st_ivas->nchan_transport == 2 ) );
+#ifndef FIX_135_MDCT_STEREO_MODE_UNINITIALIZED
     /*to prevent unitialized values during condition checks for stereo IGF*/
     if ( hCPE->hStereoMdct->isSBAStereoMode )
     {
         set_s( hCPE->hStereoMdct->IGFStereoMode, -1, 2 );
     }
+#endif
 
     if ( !bfi )
     {