diff --git a/src/bank.rs b/src/bank.rs
index ff0e6d56ab..66776a0caa 100644
--- a/src/bank.rs
+++ b/src/bank.rs
@@ -822,8 +822,8 @@ impl Bank {
                 system_program::process_instruction(&tx, instruction_index, program_accounts)
             {
                 let err = match err {
-                    system_program::Error::ResultWithNegativeTokens(i) => {
-                        BankError::ResultWithNegativeTokens(i)
+                    system_program::Error::ResultWithNegativeTokens => {
+                        BankError::ResultWithNegativeTokens(instruction_index as u8)
                     }
                     _ => BankError::ProgramRuntimeError(instruction_index as u8),
                 };
diff --git a/src/system_program.rs b/src/system_program.rs
index 9c5b8fd606..5d70e33f9b 100644
--- a/src/system_program.rs
+++ b/src/system_program.rs
@@ -12,7 +12,7 @@ pub enum Error {
     InvalidArgument,
     AssignOfUnownedAccount,
     AccountNotFinalized,
-    ResultWithNegativeTokens(u8),
+    ResultWithNegativeTokens,
 }
 impl std::fmt::Display for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
@@ -60,7 +60,7 @@ pub fn process_instruction(
                 }
                 if tokens > accounts[0].tokens {
                     info!("Insufficient tokens in account[0]");
-                    Err(Error::ResultWithNegativeTokens(pix as u8))?;
+                    Err(Error::ResultWithNegativeTokens)?;
                 }
                 accounts[0].tokens -= tokens;
                 accounts[1].tokens += tokens;
@@ -79,7 +79,7 @@ pub fn process_instruction(
                 //bank should be verifying correctness
                 if tokens > accounts[0].tokens {
                     info!("Insufficient tokens in account[0]");
-                    Err(Error::ResultWithNegativeTokens(pix as u8))?;
+                    Err(Error::ResultWithNegativeTokens)?;
                 }
                 accounts[0].tokens -= tokens;
                 accounts[1].tokens += tokens;