diff --git a/lib_com/options.h b/lib_com/options.h
index 19badde5895ba6776d9c8a1d947ea054fe93005d..bb0e077519d02bfc2c97a7b1d2760b55345bbe3a 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -197,6 +197,7 @@
 #define FIX_938_COMPILER_WARNING                        /* FhG: Fix compiler warning in ivas_mdct_core_reconstruct() */
 #define FIX_1376_MISSING_ISM_METADATA                   /* FhG: IVAS_rend: throw error if there exists an ISM input without a corresponding metadata file path */
 #define FIX_1385_INIT_IGF_STOP_FREQ                     /* FhG: Initialize infoIGFStopFreq in init_igf_dec() */
+#define FIX_1387_INIT_PRM_SQQ                           /* FhG: initialize pointer prm_sqQ, which might be uninitialized in case of bfi == 1 */
 
 /* #################### End BASOP porting switches ############################ */
 
diff --git a/lib_dec/ivas_mdct_core_dec.c b/lib_dec/ivas_mdct_core_dec.c
index 2c44565983eb508e3495477ee738465c0c0b6d65..273925bb4a2ecadb2a9c53ad8f460c4384cb2b9d 100644
--- a/lib_dec/ivas_mdct_core_dec.c
+++ b/lib_dec/ivas_mdct_core_dec.c
@@ -532,6 +532,9 @@ void ivas_mdct_core_invQ(
     set_s( total_nbbits, 0, CPE_CHANNELS );
     set_s( bitsRead, 0, CPE_CHANNELS );
     tmp_concealment_method = 0;
+#ifdef FIX_1387_INIT_PRM_SQQ
+    prm_sqQ = NULL; /* set prm_sqQ to NULL - in case of bfi == 1 it's not set or needed, but it triggers sanitizers */
+#endif
 
     for ( ch = 0; ch < CPE_CHANNELS; ch++ )
     {