diff --git a/libc/stdio/readpassphrase.h b/libc/stdio/readpassphrase.h
index 963934ed2..4e717a908 100644
--- a/libc/stdio/readpassphrase.h
+++ b/libc/stdio/readpassphrase.h
@@ -1,5 +1,5 @@
-#ifndef COSMOPOLITAN_LIBC_READPASSPHRASE_H_
-#define COSMOPOLITAN_LIBC_READPASSPHRASE_H_
+#ifndef COSMOPOLITAN_LIBC_STDIO_READPASSPHRASE_H_
+#define COSMOPOLITAN_LIBC_STDIO_READPASSPHRASE_H_
 
 #define RPP_ECHO_OFF    0x00
 #define RPP_ECHO_ON     0x01
@@ -14,4 +14,4 @@ COSMOPOLITAN_C_START_
 char *readpassphrase(const char *, char *, size_t, int) libcesque;
 
 COSMOPOLITAN_C_END_
-#endif /* COSMOPOLITAN_LIBC_READPASSPHRASE_H_ */
+#endif /* COSMOPOLITAN_LIBC_STDIO_READPASSPHRASE_H_ */