diff --git a/evm-adapters/src/sputnik/cheatcodes/cheatcode_handler.rs b/evm-adapters/src/sputnik/cheatcodes/cheatcode_handler.rs
index cdd26b12e..c72d8594b 100644
--- a/evm-adapters/src/sputnik/cheatcodes/cheatcode_handler.rs
+++ b/evm-adapters/src/sputnik/cheatcodes/cheatcode_handler.rs
@@ -113,11 +113,17 @@ pub(crate) fn convert_log(log: Log) -> Option<String> {
         LogNamedBytes32Filter(inner) => {
             format!("{}: 0x{}", inner.key, hex::encode(inner.val))
         }
-        LogNamedDecimalIntFilter(inner) => format!(
-            "{}: {:?}",
-            inner.key,
-            ethers::utils::parse_units(inner.val, inner.decimals.as_u32()).unwrap()
-        ),
+        LogNamedDecimalIntFilter(inner) => {
+            let val: String = inner.val.to_string();
+            let neg = val.trim().starts_with('-');
+            let val = val.trim().trim_start_matches('-');
+            format!(
+                "{}: {}{:?}",
+                inner.key,
+                if neg { "-" } else { "" },
+                ethers::utils::parse_units(val, inner.decimals.as_u32()).unwrap()
+            )
+        }
         LogNamedDecimalUintFilter(inner) => {
             format!(
                 "{}: {}",
@@ -1701,6 +1707,7 @@ mod tests {
             "addr: 0x2222222222222222222222222222222222222222",
             "key: 0x41b1a0649752af1b28b3dc29a1556eee781e4a4c3a1f7f53f90fa834de098c4d",
             "key: 123000000000000000000",
+            "key: -123000000000000000000",
             "key: 0.000000000000001234",
             "key: 123",
             "key: 1234",
diff --git a/evm-adapters/testdata/DebugLogs.sol b/evm-adapters/testdata/DebugLogs.sol
index 146b0eb3f..400aa81ba 100644
--- a/evm-adapters/testdata/DebugLogs.sol
+++ b/evm-adapters/testdata/DebugLogs.sol
@@ -15,6 +15,7 @@ contract DebugLogs is DSTest {
         emit log_named_address("addr", 0x2222222222222222222222222222222222222222);
         emit log_named_bytes32("key", keccak256(abi.encodePacked("foo")));
         emit log_named_decimal_int("key", 123, 18);
+        emit log_named_decimal_int("key", -123, 18);
         emit log_named_decimal_uint("key", 1234, 18);
         emit log_named_int("key", 123);
         emit log_named_uint("key", 1234);