diff --git a/c-programming/mem/safe_mem.h b/c-programming/mem/safe_mem.h
index 6e8b22a..47f910c 100644
--- a/c-programming/mem/safe_mem.h
+++ b/c-programming/mem/safe_mem.h
@@ -50,7 +50,7 @@ typedef unsigned char byte;
 #else
 # define NO_SECURE_ERASE_WARRANTY 1
 
-# include <string.h>
+# include <stdint.h>
 
 # define secure_erase(dest, count) do {                                       \
     uintptr_t max = (uintptr_t) ((count) / sizeof(byte));                     \