diff --git a/alsactl/alsactl_lexer.l b/alsactl/alsactl_lexer.l
index 4b8b2d1..3f0c226 100644
--- a/alsactl/alsactl_lexer.l
+++ b/alsactl/alsactl_lexer.l
@@ -85,6 +85,7 @@ space			return L_SPACE;
 depth			return L_DEPTH;
 delay			return L_DELAY;
 feedback		return L_FEEDBACK;
+depth_rear		return L_DEPTH_REAR;
 bass			return L_BASS;
 treble			return L_TREBLE;
 
diff --git a/alsactl/alsactl_parser.y b/alsactl/alsactl_parser.y
index 7018ea1..923a0c3 100644
--- a/alsactl/alsactl_parser.y
+++ b/alsactl/alsactl_parser.y
@@ -123,6 +123,7 @@ static unsigned short Xswitchiec958ocs1[16];
 %token L_IEC958OCS L_3D L_RESET L_USER L_VALID L_DATA L_PROTECT L_PRE2
 %token L_FSUNLOCK L_TYPE L_GSTATUS L_ENABLE L_DISABLE
 %token L_SW L_MONO_SW L_WIDE L_VOLUME L_CENTER L_SPACE L_DEPTH L_DELAY
+%token L_DEPTH_REAR
 %token L_FEEDBACK L_BASS L_TREBLE
 
 
@@ -249,6 +250,7 @@ m_3d_effect1_0 : L_SW '=' boolean { mixer_3d_effect1_value(SND_MIXER_EFF1_SW, $3
 	| L_DEPTH '=' integer	{ mixer_3d_effect1_value(SND_MIXER_EFF1_DEPTH, $3); }
 	| L_DELAY '=' integer	{ mixer_3d_effect1_value(SND_MIXER_EFF1_DELAY, $3); }
 	| L_FEEDBACK '=' integer { mixer_3d_effect1_value(SND_MIXER_EFF1_FEEDBACK, $3); }
+	| L_DEPTH_REAR '=' integer { mixer_3d_effect1_value(SND_MIXER_EFF1_DEPTH_REAR, $3); }
 	| error			{ yyerror("an unknown keyword in the 3D Effect1 element level"); }
 	;
 
diff --git a/alsactl/merge.c b/alsactl/merge.c
index 1ff6248..ee6a49f 100644
--- a/alsactl/merge.c
+++ b/alsactl/merge.c
@@ -287,6 +287,7 @@ static int merge_one_element(struct mixer_element *celement, struct mixer_elemen
 		celement->element.data.teffect1.depth = uelement->element.data.teffect1.depth;
 		celement->element.data.teffect1.delay = uelement->element.data.teffect1.delay;
 		celement->element.data.teffect1.feedback = uelement->element.data.teffect1.feedback;
+		celement->element.data.teffect1.depth_rear = uelement->element.data.teffect1.depth_rear;
 		break;
 	case SND_MIXER_ETYPE_PRE_EFFECT1:
 		if (celement->element.data.peffect1.pparameters)
diff --git a/alsactl/setup.c b/alsactl/setup.c
index e55c30f..d7e5e80 100644
--- a/alsactl/setup.c
+++ b/alsactl/setup.c
@@ -837,6 +837,8 @@ static void soundcard_setup_write_mixer_element(FILE * out, struct mixer_element
 			fprintf(out, "    ; Delay : Min %i Max %i\n", info->data.teffect1.min_delay, info->data.teffect1.max_delay);
 		if (info->data.teffect1.effect & SND_MIXER_EFF1_FEEDBACK)
 			fprintf(out, "    ; Feedback : Min %i Max %i\n", info->data.teffect1.min_feedback, info->data.teffect1.max_feedback);
+		if (info->data.teffect1.effect & SND_MIXER_EFF1_DEPTH_REAR)
+			fprintf(out, "    ; Depth rear : Min %i Max %i\n", info->data.teffect1.min_depth_rear, info->data.teffect1.max_depth_rear);
 		fprintf(out, "    element(\"%s\",%i,%i,_3D_Effect1(", mixer_element_name(&element->eid), element->eid.index, element->eid.type);
 		idx = 0;
 		if (element->data.teffect1.effect & SND_MIXER_EFF1_SW) 
@@ -857,6 +859,8 @@ static void soundcard_setup_write_mixer_element(FILE * out, struct mixer_element
 			fprintf(out, "%sdelay=%i", idx++ > 0 ? "," : "", element->data.teffect1.delay);
 		if (element->data.teffect1.effect & SND_MIXER_EFF1_FEEDBACK)
 			fprintf(out, "%sfeedback=%i", idx++ > 0 ? "," : "", element->data.teffect1.feedback);
+		if (element->data.teffect1.depth_rear & SND_MIXER_EFF1_DEPTH_REAR)
+			fprintf(out, "%sdepth_rear=%i", idx++ > 0 ? "," : "", element->data.teffect1.depth_rear);
 		fprintf(out, "))\n");
 		break; 
 	default: