1 files changed, 7 insertions, 2 deletions

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index f664a22b5fea..04fddddc6b6f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2158,8 +2158,13 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
                 printed += perf_event_attr__fprintf(fp, &evsel->attr,
                                                     __print_attr__fprintf, &first);
         } else if (details->freq) {
-                printed += comma_fprintf(fp, &first, " sample_freq=%" PRIu64,
-                                         (u64)evsel->attr.sample_freq);
+                const char *term = "sample_freq";
+
+                if (!evsel->attr.freq)
+                        term = "sample_period";
+
+                printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
+                                         term, (u64)evsel->attr.sample_freq);
         }
 out:
         fputc('\n', fp);