diff --git a/processor/src/operations/ext2_ops.rs b/processor/src/operations/ext2_ops.rs
index 5e3593cc0e..b32ab865c3 100644
--- a/processor/src/operations/ext2_ops.rs
+++ b/processor/src/operations/ext2_ops.rs
@@ -68,8 +68,8 @@ mod tests {
     // HELPER FUNCTIONS
     // --------------------------------------------------------------------------------------------
 
-    fn build_expected(values: &[Felt]) -> [Felt; 16] {
-        let mut expected = [ZERO; 16];
+    fn build_expected(values: &[Felt]) -> [Felt; MIN_STACK_DEPTH] {
+        let mut expected = [ZERO; MIN_STACK_DEPTH];
         for (&value, result) in values.iter().zip(expected.iter_mut()) {
             *result = value;
         }
diff --git a/processor/src/operations/field_ops.rs b/processor/src/operations/field_ops.rs
index 1fe77747de..143b28689c 100644
--- a/processor/src/operations/field_ops.rs
+++ b/processor/src/operations/field_ops.rs
@@ -646,8 +646,8 @@ mod tests {
         (Felt::new(a), Felt::new(b), Felt::new(c))
     }
 
-    fn build_expected(values: &[Felt]) -> [Felt; 16] {
-        let mut expected = [ZERO; 16];
+    fn build_expected(values: &[Felt]) -> [Felt; MIN_STACK_DEPTH] {
+        let mut expected = [ZERO; MIN_STACK_DEPTH];
         for (&value, result) in values.iter().zip(expected.iter_mut()) {
             *result = value;
         }
diff --git a/processor/src/operations/io_ops.rs b/processor/src/operations/io_ops.rs
index 1fefa75c7f..4081962378 100644
--- a/processor/src/operations/io_ops.rs
+++ b/processor/src/operations/io_ops.rs
@@ -760,8 +760,8 @@ mod tests {
         process.execute_op(Operation::MStore, program, host).unwrap();
     }
 
-    fn build_expected_stack(values: &[u64]) -> [Felt; 16] {
-        let mut expected = [ZERO; 16];
+    fn build_expected_stack(values: &[u64]) -> [Felt; MIN_STACK_DEPTH] {
+        let mut expected = [ZERO; MIN_STACK_DEPTH];
         for (&value, result) in values.iter().zip(expected.iter_mut()) {
             *result = Felt::new(value);
         }
diff --git a/processor/src/operations/stack_ops.rs b/processor/src/operations/stack_ops.rs
index a40ecac1fe..f37f867a3e 100644
--- a/processor/src/operations/stack_ops.rs
+++ b/processor/src/operations/stack_ops.rs
@@ -616,8 +616,8 @@ mod tests {
     // HELPER FUNCTIONS
     // --------------------------------------------------------------------------------------------
 
-    fn build_expected(values: &[u64]) -> [Felt; 16] {
-        let mut expected = [ZERO; 16];
+    fn build_expected(values: &[u64]) -> [Felt; MIN_STACK_DEPTH] {
+        let mut expected = [ZERO; MIN_STACK_DEPTH];
         for (&value, result) in values.iter().zip(expected.iter_mut()) {
             *result = Felt::new(value);
         }
diff --git a/processor/src/operations/sys_ops/mod.rs b/processor/src/operations/sys_ops/mod.rs
index 73949d9985..7c549bd53a 100644
--- a/processor/src/operations/sys_ops/mod.rs
+++ b/processor/src/operations/sys_ops/mod.rs
@@ -202,8 +202,8 @@ mod tests {
     // HELPER FUNCTIONS
     // --------------------------------------------------------------------------------------------
 
-    fn build_expected_stack(values: &[u64]) -> [Felt; 16] {
-        let mut expected = [ZERO; 16];
+    fn build_expected_stack(values: &[u64]) -> [Felt; MIN_STACK_DEPTH] {
+        let mut expected = [ZERO; MIN_STACK_DEPTH];
         for (&value, result) in values.iter().zip(expected.iter_mut()) {
             *result = Felt::new(value);
         }