diff --git a/src/effects/TruncSilence.cpp b/src/effects/TruncSilence.cpp
index 0686e462d..3654448eb 100644
--- a/src/effects/TruncSilence.cpp
+++ b/src/effects/TruncSilence.cpp
@@ -511,7 +511,7 @@ bool EffectTruncSilence::Process()
 
          // Look for silences in current block
          for (sampleCount i = 0; i < count; ++i) {
-            if (fabs(buffer[i] < truncDbSilenceThreshold)) {
+            if (fabs(buffer[i]) < truncDbSilenceThreshold) {
                ++silentFrames;
             }
             else {