diff --git a/src/containers/audio-trimmer.jsx b/src/containers/audio-trimmer.jsx
index 02536a9ce..8a07350d3 100644
--- a/src/containers/audio-trimmer.jsx
+++ b/src/containers/audio-trimmer.jsx
@@ -17,12 +17,12 @@ class AudioTrimmer extends React.Component {
     }
     handleTrimStartMouseMove (e) {
         const dx = 100 * (e.clientX - this.initialX) / 480;
-        const newTrim = Math.min(this.props.trimEnd, this.initialTrim + dx);
+        const newTrim = Math.max(1, Math.min(this.props.trimEnd, this.initialTrim + dx));
         this.props.onSetTrimStart(newTrim);
     }
     handleTrimEndMouseMove (e) {
         const dx = 100 * (e.clientX - this.initialX) / 480;
-        const newTrim = Math.max(this.props.trimStart, this.initialTrim + dx);
+        const newTrim = Math.min(99, Math.max(this.props.trimStart, this.initialTrim + dx));
         this.props.onSetTrimEnd(newTrim);
     }
     handleTrimStartMouseUp () {