diff --git a/include/mbedtls/threading.h b/include/mbedtls/threading.h
index 6830bb4..2e61b2e 100644
--- a/include/mbedtls/threading.h
+++ b/include/mbedtls/threading.h
@@ -114,7 +114,7 @@
 #include <unistd.h>
 #if !defined(_POSIX_VERSION) || 200112L > _POSIX_THREAD_SAFE_FUNCTIONS
 /*
- * The preprocessor conditions above are the same as in platform_utils.c and
+ * The preprocessor conditions above are the same as in platform_util.c and
  * threading.c. Remember to update the code there when changing the conditions
  * here.
  */
diff --git a/library/platform_util.c b/library/platform_util.c
index f2f83e6..ddb56ed 100644
--- a/library/platform_util.c
+++ b/library/platform_util.c
@@ -85,7 +85,7 @@
 /*
  * This is a convenience shorthand macro to avoid checking the long
  * preprocessor conditions above. Ideally, we could expose this macro in
- * platform_utils.h and simply use it in platform_utils.c, threading.c and
+ * platform_util.h and simply use it in platform_util.c, threading.c and
  * threading.h. However, this macro is not part of the Mbed TLS public API, so
  * we keep it private by only defining it in this file
  */
diff --git a/library/threading.c b/library/threading.c
index e7c8d98..f37049b 100644
--- a/library/threading.c
+++ b/library/threading.c
@@ -46,7 +46,7 @@
 /*
  * This is a convenience shorthand macro to avoid checking the long
  * preprocessor conditions above. Ideally, we could expose this macro in
- * platform_utils.h and simply use it in platform_utils.c, threading.c and
+ * platform_util.h and simply use it in platform_util.c, threading.c and
  * threading.h. However, this macro is not part of the Mbed TLS public API, so
  * we keep it private by only defining it in this file
  */