diff --git a/lib_com/options.h b/lib_com/options.h
index ebaa43a69d47dee5ab80d23f1e1216a25f2284f5..b2897c3ba02826d6a630cf3d81a163e94b42d4b1 100755
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -150,6 +150,7 @@
 
 /*#define FIX_I4_OL_PITCH*/                             /* fix open-loop pitch used for EVS core switching */
 /*#define SPLIT_REND_WITH_HEAD_ROT  */                  /* Dlb,FhG: Split Rendering contributions 21 and 35 */
+#define FIX_954_OTR_REF_VEC                             /* FhG: Fix forward vector direction for OTR REF VEC mode */
 
 
 /* #################### End BE switches ################################## */
diff --git a/lib_rend/ivas_orient_trk.c b/lib_rend/ivas_orient_trk.c
index ff24510c58bfd90e1c6870c8df34e017bbb83403..f4332a3b6839670d545ab323904be06faea711ec 100644
--- a/lib_rend/ivas_orient_trk.c
+++ b/lib_rend/ivas_orient_trk.c
@@ -545,7 +545,11 @@ 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 */
@@ -554,7 +558,11 @@ 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;
@@ -568,7 +576,11 @@ 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 );