diff --git a/lib_com/options.h b/lib_com/options.h
index 42ba64994a8f0e529aaece12b126d910c26087f0..02697835f1e0bd4a87c3a1d3e70cce051b431652 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -191,6 +191,7 @@
 #define FIX_970_USAN_IN_NELP_SEED
 #define NONBE_FIX_1075                                  /* FhG: fix segfault for bitrate switching + BINAURAL_ROOM_REVERB output in MC */
 #define NON_BE_FIX_1041_USE_OLD_CNG_LSPS_IF_NONSTAB     /* FhG: fix bug in TD MDCT-Stereo concealment */
+#define FIX_1044_ISM_REND_MEMORY                        /* VA: issue 1044: Lower the memory of the ISM renderer handle. */
 
 #define NONBE_FIX_984_OMASA_EXT_OUTPUT                  /* Nok: issue 1497 - porting OMASA EXT MR   */
 /* #################### End BASOP porting switches ############################ */
diff --git a/lib_dec/ivas_stat_dec.h b/lib_dec/ivas_stat_dec.h
index 83ab0a70d3e88bc168b83ecd087237ca12cf229f..b260a48e4a0be7ca8b5cb17afca6d0b3f6d9afb3 100644
--- a/lib_dec/ivas_stat_dec.h
+++ b/lib_dec/ivas_stat_dec.h
@@ -805,10 +805,18 @@ typedef struct ivas_lfe_dec_data_structure
 
 typedef struct renderer_struct
 {
+#ifdef FIX_1044_ISM_REND_MEMORY
+    float prev_gains[MAX_NUM_OBJECTS][MAX_OUTPUT_CHANNELS];
+#else
     float prev_gains[MAX_CICP_CHANNELS - 1][MAX_OUTPUT_CHANNELS];
+#endif
     float *interpolator;
     int16_t interpolator_length;
+#ifdef FIX_1044_ISM_REND_MEMORY
+    float gains[MAX_NUM_OBJECTS][MAX_OUTPUT_CHANNELS];
+#else
     float gains[MAX_CICP_CHANNELS - 1][MAX_OUTPUT_CHANNELS];
+#endif
 
 } ISM_RENDERER_DATA, *ISM_RENDERER_HANDLE;