diff --git a/src/lib.rs b/src/lib.rs
index fa11f47..bb069a9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -50,19 +50,16 @@ pub fn parse_exec_time(output: &str) -> f64 {
         if !l.contains("elapsed:") {
             acc
         } else {
-            let timing = l
-                .split("(elapsed: ")
-                .last()
-                .unwrap();
-
-            // see [rust/library/core/src/time.rs](https://git.io/Jy1rI)
-            if timing.ends_with("ns)") {
+            let timing = l.split("(elapsed: ").last().unwrap();
+            // use `contains` istd. of `ends_with`: string may contain ANSI escape sequences.
+            // possible time formats: see [rust/library/core/src/time.rs](https://git.io/Jy1rI).
+            if timing.contains("ns)") {
                 acc // range below rounding precision.
-            } else if timing.ends_with("µs)") {
+            } else if timing.contains("µs)") {
                 acc + parse_time(timing, "µs") / 1000_f64
-            } else if timing.ends_with("ms)") {
+            } else if timing.contains("ms)") {
                 acc + parse_time(timing, "ms")
-            } else if timing.ends_with("s)") {
+            } else if timing.contains("s)") {
                 acc + parse_time(timing, "s") * 1000_f64
             } else {
                 acc
@@ -91,9 +88,10 @@ mod tests {
     #[test]
     fn test_parse_exec_time() {
         assert_approx_eq!(
-            parse_exec_time(
-                "🎄 Part 1 🎄\n0 (elapsed: 74.13ns)\n🎄 Part 2 🎄\n0 (elapsed: 50.00ns)"
-            ),
+            parse_exec_time(&format!(
+                "🎄 Part 1 🎄\n0 (elapsed: 74.13ns){}\n🎄 Part 2 🎄\n0 (elapsed: 50.00ns){}",
+                ANSI_RESET, ANSI_RESET
+            )),
             0_f64
         );