diff --git a/float_models/iree_exec/mnist.c b/float_models/iree_exec/mnist.c
index e40197e..bab3cf4 100644
--- a/float_models/iree_exec/mnist.c
+++ b/float_models/iree_exec/mnist.c
@@ -65,7 +65,7 @@
 
 iree_status_t process_output(const MlModel *model,
                              iree_hal_buffer_mapping_t *buffers,
-                             MlOutput *output) {
+                             uint32_t *output_length) {
   iree_status_t result = iree_ok_status();
   // find the label index with best prediction
   float best_out = 0.0;
@@ -83,7 +83,6 @@
 
   LOG_INFO("Digit recognition result is: digit: %d", best_idx);
 
-  output->result = &score;
-  output->len = sizeof(score);
+  *output_length = sizeof(score);
   return result;
 }
diff --git a/float_models/iree_exec/mobilenet_v1.c b/float_models/iree_exec/mobilenet_v1.c
index d6a6a1d..98b82d0 100644
--- a/float_models/iree_exec/mobilenet_v1.c
+++ b/float_models/iree_exec/mobilenet_v1.c
@@ -69,7 +69,7 @@
 
 iree_status_t process_output(const MlModel *model,
                              iree_hal_buffer_mapping_t *buffers,
-                             MlOutput *output) {
+                             uint32_t *output_length) {
   iree_status_t result = iree_ok_status();
   // find the label index with best prediction
   float best_out = 0.0;
@@ -86,7 +86,6 @@
 
   LOG_INFO("Image prediction result is: id: %d", best_idx + 1);
 
-  output->result = &score;
-  output->len = sizeof(score);
+  *output_length = sizeof(score);
   return result;
 }
diff --git a/quant_models/iree_exec/mobilenet_v1.c b/quant_models/iree_exec/mobilenet_v1.c
index 33f6352..9394637 100644
--- a/quant_models/iree_exec/mobilenet_v1.c
+++ b/quant_models/iree_exec/mobilenet_v1.c
@@ -70,7 +70,7 @@
 
 iree_status_t process_output(const MlModel *model,
                              iree_hal_buffer_mapping_t *buffers,
-                             MlOutput *output) {
+                             uint32_t *output_length) {
   iree_status_t result = iree_ok_status();
   // find the label index with best prediction
   int best_out = 0;
@@ -87,7 +87,6 @@
 
   LOG_INFO("Image prediction result is: id: %d", best_idx + 1);
 
-  output->result = &score;
-  output->len = sizeof(score);
+  *output_length = sizeof(score);
   return result;
 }
diff --git a/quant_models/iree_exec/mobilenet_v2.c b/quant_models/iree_exec/mobilenet_v2.c
index a3e70f4..e2d342a 100644
--- a/quant_models/iree_exec/mobilenet_v2.c
+++ b/quant_models/iree_exec/mobilenet_v2.c
@@ -70,7 +70,7 @@
 
 iree_status_t process_output(const MlModel *model,
                              iree_hal_buffer_mapping_t *buffers,
-                             MlOutput *output) {
+                             uint32_t *output_length) {
   iree_status_t result = iree_ok_status();
   // find the label index with best prediction
   int best_out = 0;
@@ -87,7 +87,6 @@
 
   LOG_INFO("Image prediction result is: id: %d", best_idx + 1);
 
-  output->result = &score;
-  output->len = sizeof(score);
+  *output_length = sizeof(score);
   return result;
 }
diff --git a/quant_models/iree_exec/person_detection.c b/quant_models/iree_exec/person_detection.c
index 759b82f..6d96146 100644
--- a/quant_models/iree_exec/person_detection.c
+++ b/quant_models/iree_exec/person_detection.c
@@ -70,7 +70,7 @@
 
 iree_status_t process_output(const MlModel *model,
                              iree_hal_buffer_mapping_t *buffers,
-                             MlOutput *output) {
+                             uint32_t *output_length) {
   iree_status_t result = iree_ok_status();
   int8_t *data = (int8_t *)buffers[0].contents.data;
   detection.non_person_score = data[0];
@@ -78,8 +78,7 @@
 
   LOG_INFO("Output: Non-person Score: %d; Person Score: %d",
            detection.non_person_score, detection.person_score);
-  output->result = &detection;
-  output->len = sizeof(detection);
 
+  *output_length = sizeof(detection);
   return result;
 }