diff --git a/test/fuzzers/neteq_signal_fuzzer.cc b/test/fuzzers/neteq_signal_fuzzer.cc
index 28f2a1bf28..981ba282ed 100644
--- a/test/fuzzers/neteq_signal_fuzzer.cc
+++ b/test/fuzzers/neteq_signal_fuzzer.cc
@@ -142,6 +142,10 @@ class FuzzSignalInput : public NetEqInput {
 void FuzzOneInputTest(const uint8_t* data, size_t size) {
   if (size < 1)
     return;
+  // Limit the input size to 100000 bytes to avoid fuzzer timeout.
+  if (size > 100000)
+    return;
+
   FuzzDataHelper fuzz_data(rtc::ArrayView<const uint8_t>(data, size));
 
   // Allowed sample rates and payload types used in the test.