diff --git a/gtests/net/packetdrill/parser.y b/gtests/net/packetdrill/parser.y
index 525571df46f8890b06be0dfd0396b35ff52ce525..6c2d0757123ca5764713c60b924864b134cfea43 100644
--- a/gtests/net/packetdrill/parser.y
+++ b/gtests/net/packetdrill/parser.y
@@ -933,7 +933,7 @@ sctp_packet_spec
 	enum direction_t direction = outer->direction;
 
 	inner = new_sctp_generic_packet(in_config->wire_protocol, direction, $2,
-	                        -1, false, $6, &error);
+	                                -1, false, $6, &error);
 	if (inner == NULL) {
 		assert(error != NULL);
         semantic_error(error);
@@ -948,7 +948,7 @@ sctp_packet_spec
 	enum direction_t direction = outer->direction;
 
 	inner = new_sctp_generic_packet(in_config->wire_protocol, direction, $2,
-	                        		-1, true, $9, &error);
+	                                -1, true, $9, &error);
 	if (inner == NULL) {
 		assert(error != NULL);
 		semantic_error(error);
@@ -966,7 +966,7 @@ sctp_packet_spec
 		semantic_error("tag value out of range");
 	}
 	inner = new_sctp_generic_packet(in_config->wire_protocol, direction, $2,
-                        			$7, false, $11, &error);
+                                    $7, false, $11, &error);
 	if (inner == NULL) {
 		assert(error != NULL);
 		semantic_error(error);
@@ -984,7 +984,7 @@ sctp_packet_spec
 		semantic_error("tag value out of range");
 	}
 	inner = new_sctp_generic_packet(in_config->wire_protocol, direction, $2,
-	                        		$9, true, $13, &error);
+	                                $9, true, $13, &error);
 	if (inner == NULL) {
 		assert(error != NULL);
 		semantic_error(error);