diff --git a/config/sanitizers/sanitizers.gni b/config/sanitizers/sanitizers.gni
index dbf90531c..2a91c3de9 100644
--- a/config/sanitizers/sanitizers.gni
+++ b/config/sanitizers/sanitizers.gni
@@ -140,7 +140,7 @@ declare_args() {
   asan_globals = !is_mac
 }
 
-if (use_afl && sanitizer_coverage_flags == "") {
+if ((use_afl || use_libfuzzer) && sanitizer_coverage_flags == "") {
   sanitizer_coverage_flags = "trace-pc-guard"
 } else if (use_sanitizer_coverage && sanitizer_coverage_flags == "") {
   sanitizer_coverage_flags = "edge,indirect-calls,8bit-counters"