diff --git a/src/mesa/shader/program_parse.tab.c b/src/mesa/shader/program_parse.tab.c
index 99c4b2baa5f..7da7226c328 100644
--- a/src/mesa/shader/program_parse.tab.c
+++ b/src/mesa/shader/program_parse.tab.c
@@ -3366,7 +3366,7 @@ yyreduce:
 	      s->param_binding_type = (yyvsp[(3) - (3)].temp_sym).param_binding_type;
 	      s->param_binding_begin = (yyvsp[(3) - (3)].temp_sym).param_binding_begin;
 	      s->param_binding_length = (yyvsp[(3) - (3)].temp_sym).param_binding_length;
-              s->param_binding_swizzle = SWIZZLE_XYZW;
+              s->param_binding_swizzle = (yyvsp[(3) - (3)].temp_sym).param_binding_swizzle;
 	      s->param_is_array = 0;
 	   }
 	;}
diff --git a/src/mesa/shader/program_parse.y b/src/mesa/shader/program_parse.y
index 06c2db7a07e..a2f34b863b5 100644
--- a/src/mesa/shader/program_parse.y
+++ b/src/mesa/shader/program_parse.y
@@ -1219,7 +1219,7 @@ PARAM_singleStmt: PARAM IDENTIFIER paramSingleInit
 	      s->param_binding_type = $3.param_binding_type;
 	      s->param_binding_begin = $3.param_binding_begin;
 	      s->param_binding_length = $3.param_binding_length;
-              s->param_binding_swizzle = SWIZZLE_XYZW;
+              s->param_binding_swizzle = $3.param_binding_swizzle;
 	      s->param_is_array = 0;
 	   }
 	}