diff --git a/dlls/ntdll/ntdll_misc.h b/dlls/ntdll/ntdll_misc.h
index 9ac3d5a9c86..50a3dde574c 100644
--- a/dlls/ntdll/ntdll_misc.h
+++ b/dlls/ntdll/ntdll_misc.h
@@ -122,12 +122,6 @@ static inline TEB64 *NtCurrentTeb64(void) { return NULL; }
 static inline TEB64 *NtCurrentTeb64(void) { return (TEB64 *)NtCurrentTeb()->GdiBatchCount; }
 #endif
 
-#define HASH_STRING_ALGORITHM_DEFAULT  0
-#define HASH_STRING_ALGORITHM_X65599   1
-#define HASH_STRING_ALGORITHM_INVALID  0xffffffff
-
-NTSTATUS WINAPI RtlHashUnicodeString(PCUNICODE_STRING,BOOLEAN,ULONG,ULONG*);
-
 /* convert from straight ASCII to Unicode without depending on the current codepage */
 static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
 {
diff --git a/dlls/ntdll/tests/rtlstr.c b/dlls/ntdll/tests/rtlstr.c
index 53ac223980e..3d2d4e4ac5e 100644
--- a/dlls/ntdll/tests/rtlstr.c
+++ b/dlls/ntdll/tests/rtlstr.c
@@ -30,9 +30,6 @@
 #include "winnls.h"
 #include "guiddef.h"
 
-#define HASH_STRING_ALGORITHM_X65599   1
-#define HASH_STRING_ALGORITHM_INVALID  0xffffffff
-
 /* Function ptrs for ntdll calls */
 static HMODULE hntdll = 0;
 static NTSTATUS (WINAPI *pRtlAnsiStringToUnicodeString)(PUNICODE_STRING, PCANSI_STRING, BOOLEAN);
diff --git a/include/winternl.h b/include/winternl.h
index 04778c5cd59..cccbc149480 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -4331,6 +4331,11 @@ typedef struct _API_SET_VALUE_ENTRY
     ULONG ValueLength;
 } API_SET_VALUE_ENTRY;
 
+
+#define HASH_STRING_ALGORITHM_DEFAULT  0
+#define HASH_STRING_ALGORITHM_X65599   1
+#define HASH_STRING_ALGORITHM_INVALID  0xffffffff
+
 /***********************************************************************
  * Function declarations
  */