4 files changed, 4 insertions, 5 deletions
diff --git a/lfn.h b/lfn.h
index df4d421..d9401b7 100644
--- a/lfn.h
+++ b/lfn.h
@@ -31,7 +31,7 @@
 #define MIN_HASH_CHARS 2
 #define MAX_HASH_CHARS 6
 
-#ifdef __IN_SFTSR__
+#ifdef IN_TSR
 
 static inline bool translate_filename_from_host(SHFLSTRING *, bool, bool);
 static bool matches_8_3_wildcard(const char __far *, const char __far *);
@@ -438,5 +438,5 @@ static inline uint16_t get_true_host_name(SHFLROOT root, TSRDATAPTR data, uint8_
 	return get_true_host_name_n(root, data, dst, src, buflen, buflen);
 }
 
-#endif // __IN_SFTSR__
+#endif // IN_TSR
 #endif // LFN_H
diff --git a/makefile b/makefile
index 9f11660..7f947ce 100644
--- a/makefile
+++ b/makefile
@@ -13,7 +13,7 @@ doscflags = -bt=dos -ms -6 -osi -w3 -wcd=202
 # -osi to optimize for size, put intrinsics inline (to avoid runtime calls)
 # -w3 enables warnings
 # -wcd=202 disables the unreferenced function warning (e.g., for inline functions in headers)
-dostsrcflags = -zu -s -g=RES_GROUP -nd=RES -nt=RES_TEXT -nc=RES_CODE
+dostsrcflags = -DIN_TSR -zu -s -g=RES_GROUP -nd=RES -nt=RES_TEXT -nc=RES_CODE
 # -s to disable stack checks, since it inserts calls to the runtime from the TSR part
 # -zu since ss != ds on the TSR
 
diff --git a/sftsr.c b/sftsr.c
index 34992b4..05e9f46 100644
--- a/sftsr.c
+++ b/sftsr.c
@@ -67,7 +67,6 @@ static SHFLSTRING_WITH_BUF(shflstr, SHFL_MAX_LEN);
 /** Private buffer where we store VirtualBox-obtained dir entries. */
 static SHFLDIRINFO_WITH_NAME_BUF(shfldirinfo, SHFL_MAX_LEN);
 
-#define __IN_SFTSR__ 1
 #include "unicode.h"
 #include "nls.h"
 #include "lfn.h"
diff --git a/unicode.h b/unicode.h
index 730d549..2e24a75 100644
--- a/unicode.h
+++ b/unicode.h
@@ -24,7 +24,7 @@
 #include "sftsr.h"
 
 
-#ifdef __IN_SFTSR__
+#ifdef IN_TSR
 #define TSRDATAPTR PTSRDATA
 #else
 #define TSRDATAPTR LPTSRDATA