diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 3bdb407f9cd9..eb340571e7d6 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -58,7 +58,7 @@ struct callchain_list {
 /*
  * A callchain cursor is a single linked list that
  * let one feed a callchain progressively.
- * It keeps persitent allocated entries to minimize
+ * It keeps persistent allocated entries to minimize
  * allocations.
  */
 struct callchain_cursor_node {
diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c
index 1b997d2b89ce..34b97bbd79b1 100644
--- a/tools/perf/util/parse-events-test.c
+++ b/tools/perf/util/parse-events-test.c
@@ -752,7 +752,7 @@ static int test_pmu(void)
 
 	ret = stat(path, &st);
 	if (ret)
-		pr_debug("ommiting PMU cpu tests\n");
+		pr_debug("omitting PMU cpu tests\n");
 	return !ret;
 }
 
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 2884e67ee625..f4e37cec9de6 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -1,5 +1,5 @@
 #
-# List of files needed by perf python extention
+# List of files needed by perf python extension
 #
 # Each source file must be placed on its own line so that it can be
 # processed by Makefile and util/setup.py accordingly.