diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c
index e281f4ef..d1786571 100644
--- a/util/nvmutil/nvmutil.c
+++ b/util/nvmutil/nvmutil.c
@@ -34,16 +34,20 @@
 #include <limits.h>
 #include <stdarg.h>
 #if defined(__has_include)
-#if __has_include(<stdint.h>)
-#include <stdint.h>
+#  if __has_include(<stdint.h>)
+#    include <stdint.h>
+#  else
+typedef unsigned char  uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int   uint32_t;
+#  endif
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#  include <stdint.h>
 #else
 typedef unsigned char  uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int   uint32_t;
 #endif
-#else
-#include <stdint.h>
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>