diff --git a/lib_com/options.h b/lib_com/options.h
index c1a436a87f5fc5751ebbd0d70d9b47b37d64c065..b5e3580c48e11496419323f03d7cf24bc6c90a58 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -160,6 +160,7 @@
 #define NONBE_1233_HQ_CLASSIFIER_DIV_BY_ZERO            /* Eri: issue 1233: Address possible division by zero in hf_spectrum_sparseness() */
 
 #define NONE_BE_FIX_BASOP_1044_OSBA_PRERENDER_MIX_GAINS /* DLB: adjust prerendering and mixing gain in OSBA encoder. This is fix to float codes*/
+#define FIX_954_OTR_REF_VEC                             /* FhG: Fix forward vector direction for OTR REF VEC mode */
 #define NONBE_1211_DTX_BR_SWITCHING                     /* VA: port float issue 1211: fix crash in MASA DTX bitrate switching */
 #define NONBE_FIX_1189_GSC_IVAS_OMASA                   /* VA: Fix for issue 1189: Bitstream desynchornization due to reading/writing of the GSC_IVAS_mode parameter */
 #define NONBE_FIX_1087_OOB_SBA_DTX_RS                   /* VA: issue 1087: Extend the length of the buffer for MCT decoding to avoid out-of-bound writing in SBA SID bitrate switching decoding */
diff --git a/lib_rend/ivas_orient_trk.c b/lib_rend/ivas_orient_trk.c
index a3fe0b61fb9a6a98e73fd786f4c395c32a8b1fa2..90a6f0f1b6382d3e2d947e1f9d5c2989b6631955 100644
--- a/lib_rend/ivas_orient_trk.c
+++ b/lib_rend/ivas_orient_trk.c
@@ -564,7 +564,11 @@ ivas_error ivas_orient_trk_SetReferenceVector(
         case IVAS_HEAD_ORIENT_TRK_REF:
         case IVAS_HEAD_ORIENT_TRK_AVG:
         case IVAS_HEAD_ORIENT_TRK_REF_VEC:
+#ifdef FIX_954_OTR_REF_VEC
+            acousticFrontVector = VectorSubtract( refPos, listenerPos );
+#else
             acousticFrontVector = VectorSubtract( listenerPos, refPos );
+#endif
             break;
         case IVAS_HEAD_ORIENT_TRK_REF_VEC_LEV:
             /* ignore the height difference between listener position and reference position */
@@ -573,7 +577,11 @@ ivas_error ivas_orient_trk_SetReferenceVector(
             listenerPosLevel.y = listenerPos.y;
             refPosLevel.x = refPos.x;
             refPosLevel.y = refPos.y;
+#ifdef FIX_954_OTR_REF_VEC
+            acousticFrontVector = VectorSubtract( refPosLevel, listenerPosLevel );
+#else
             acousticFrontVector = VectorSubtract( listenerPosLevel, refPosLevel );
+#endif
             break;
         default:
             return IVAS_ERR_WRONG_PARAMS;
@@ -587,7 +595,11 @@ ivas_error ivas_orient_trk_SetReferenceVector(
         return IVAS_ERR_WRONG_PARAMS;
     }
 
+#ifdef FIX_954_OTR_REF_VEC
+    ivasForwardVector.x = 1.0f;
+#else
     ivasForwardVector.x = -1.0f;
+#endif
     ivasForwardVector.y = 0.0f;
     ivasForwardVector.z = 0.0f;
     VectorRotationToQuaternion( ivasForwardVector, acousticFrontVector, &pOTR->refRot );