diff --git a/libs/libc/stdio/legacy_libvsprintf.c b/libs/libc/stdio/legacy_libvsprintf.c
index 3e176f4213..440b6bec2b 100644
--- a/libs/libc/stdio/legacy_libvsprintf.c
+++ b/libs/libc/stdio/legacy_libvsprintf.c
@@ -39,7 +39,6 @@
 
 #include <nuttx/compiler.h>
 
-#include <math.h>
 #include <wchar.h>
 #include <stdint.h>
 #include <stdbool.h>
diff --git a/libs/libc/stdio/lib_dtoa_data.c b/libs/libc/stdio/lib_dtoa_data.c
index 41e8874666..b76a9f4697 100644
--- a/libs/libc/stdio/lib_dtoa_data.c
+++ b/libs/libc/stdio/lib_dtoa_data.c
@@ -37,7 +37,6 @@
  * Included Files
  ****************************************************************************/
 
-#include <sys/types.h>
 #include "lib_dtoa_engine.h"
 
 /****************************************************************************
@@ -275,3 +274,7 @@ const double_t g_dtoa_round[] =
   5e0,
 #endif
 };
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
diff --git a/libs/libc/stdio/lib_dtoa_engine.c b/libs/libc/stdio/lib_dtoa_engine.c
index a63b16a66f..16a89b9625 100644
--- a/libs/libc/stdio/lib_dtoa_engine.c
+++ b/libs/libc/stdio/lib_dtoa_engine.c
@@ -37,9 +37,6 @@
  * Included Files
  ****************************************************************************/
 
-#include <sys/types.h>
-#include <math.h>
-
 #include "lib_dtoa_engine.h"
 
 /****************************************************************************
diff --git a/libs/libc/stdio/lib_libdtoa.c b/libs/libc/stdio/lib_libdtoa.c
index 6f02566635..31d6d1cd6f 100644
--- a/libs/libc/stdio/lib_libdtoa.c
+++ b/libs/libc/stdio/lib_libdtoa.c
@@ -46,7 +46,6 @@
 
 #include <nuttx/config.h>
 
-#include <sys/types.h>
 #include <stdbool.h>
 #include <math.h>
 #include <assert.h>
diff --git a/libs/libc/stdio/lib_libvsprintf.c b/libs/libc/stdio/lib_libvsprintf.c
index 7a0f01850e..0ac228a5bf 100644
--- a/libs/libc/stdio/lib_libvsprintf.c
+++ b/libs/libc/stdio/lib_libvsprintf.c
@@ -42,7 +42,6 @@
 
 #include <nuttx/config.h>
 
-#include <sys/types.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>