diff --git a/include/freetype/config/integer-types.h b/include/freetype/config/integer-types.h
index 4bb3eedab..0f3f3ee2b 100644
--- a/include/freetype/config/integer-types.h
+++ b/include/freetype/config/integer-types.h
@@ -178,8 +178,6 @@
   /* Autoconf                                                            */
 #if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
 
-  /* `FT_LONG64` must be defined if a 64-bit type is available */
-#define FT_LONG64
 #define FT_INT64   long
 #define FT_UINT64  unsigned long
 
@@ -194,14 +192,12 @@
 
 #if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L
 
-#define FT_LONG64
 #define FT_INT64   long long int
 #define FT_UINT64  unsigned long long int
 
 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
 
   /* this compiler provides the `__int64` type */
-#define FT_LONG64
 #define FT_INT64   __int64
 #define FT_UINT64  unsigned __int64
 
@@ -211,7 +207,6 @@
   /*       to test the compiler version.                                 */
 
   /* this compiler provides the `__int64` type */
-#define FT_LONG64
 #define FT_INT64   __int64
 #define FT_UINT64  unsigned __int64
 
@@ -221,14 +216,12 @@
 
 #elif defined( __MWERKS__ )    /* Metrowerks CodeWarrior */
 
-#define FT_LONG64
 #define FT_INT64   long long int
 #define FT_UINT64  unsigned long long int
 
 #elif defined( __GNUC__ )
 
   /* GCC provides the `long long` type */
-#define FT_LONG64
 #define FT_INT64   long long int
 #define FT_UINT64  unsigned long long int
 
@@ -236,7 +229,7 @@
 
 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
 
-#ifdef FT_LONG64
+#ifdef FT_INT64
   typedef FT_INT64   FT_Int64;
   typedef FT_UINT64  FT_UInt64;
 #endif
diff --git a/include/freetype/internal/ftcalc.h b/include/freetype/internal/ftcalc.h
index 15025e871..f24930792 100644
--- a/include/freetype/internal/ftcalc.h
+++ b/include/freetype/internal/ftcalc.h
@@ -487,7 +487,7 @@ FT_BEGIN_HEADER
 #define NEG_INT32( a )                                  \
           (FT_Int32)( (FT_UInt32)0 - (FT_UInt32)(a) )
 
-#ifdef FT_LONG64
+#ifdef FT_INT64
 
 #define ADD_INT64( a, b )                               \
           (FT_Int64)( (FT_UInt64)(a) + (FT_UInt64)(b) )
@@ -498,7 +498,7 @@ FT_BEGIN_HEADER
 #define NEG_INT64( a )                                  \
           (FT_Int64)( (FT_UInt64)0 - (FT_UInt64)(a) )
 
-#endif /* FT_LONG64 */
+#endif /* FT_INT64 */
 
 
 FT_END_HEADER
diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c
index e60303afc..9df8e4010 100644
--- a/src/base/ftcalc.c
+++ b/src/base/ftcalc.c
@@ -45,7 +45,7 @@
 
 /* we need to emulate a 64-bit data type if a real one isn't available */
 
-#ifndef FT_LONG64
+#ifndef FT_INT64
 
   typedef struct  FT_Int64_
   {
@@ -54,7 +54,7 @@
 
   } FT_Int64;
 
-#endif /* !FT_LONG64 */
+#endif /* !FT_INT64 */
 
 
   /**************************************************************************
@@ -79,7 +79,7 @@
   FT_END_STMNT
 
   /* The following three functions are available regardless of whether */
-  /* FT_LONG64 is defined.                                             */
+  /* FT_INT64 is defined.                                              */
 
   /* documentation is in freetype.h */
 
@@ -164,7 +164,7 @@
   }
 
 
-#ifdef FT_LONG64
+#ifdef FT_INT64
 
 
   /* documentation is in freetype.h */
@@ -272,7 +272,7 @@
   }
 
 
-#else /* !FT_LONG64 */
+#else /* !FT_INT64 */
 
 
   static void
@@ -651,7 +651,7 @@
   }
 
 
-#endif /* !FT_LONG64 */
+#endif /* !FT_INT64 */
 
 
   /* documentation is in ftglyph.h */
@@ -985,7 +985,7 @@
     /* we silently ignore overflow errors since such large values */
     /* lead to even more (harmless) rendering errors later on     */
 
-#ifdef FT_LONG64
+#ifdef FT_INT64
 
     FT_Int64  delta = SUB_INT64( MUL_INT64( in_x, out_y ),
                                  MUL_INT64( in_y, out_x ) );
diff --git a/src/base/fttrigon.c b/src/base/fttrigon.c
index 990c46d99..0ca6d7810 100644
--- a/src/base/fttrigon.c
+++ b/src/base/fttrigon.c
@@ -53,7 +53,7 @@
   };
 
 
-#ifdef FT_LONG64
+#ifdef FT_INT64
 
   /* multiply a given value by the CORDIC shrink factor */
   static FT_Fixed
@@ -76,7 +76,7 @@
     return s < 0 ? -val : val;
   }
 
-#else /* !FT_LONG64 */
+#else /* !FT_INT64 */
 
   /* multiply a given value by the CORDIC shrink factor */
   static FT_Fixed
@@ -125,7 +125,7 @@
     return s < 0 ? -val : val;
   }
 
-#endif /* !FT_LONG64 */
+#endif /* !FT_INT64 */
 
 
   /* undefined and never called for zero vector */
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index 250053e8d..0ae187f2b 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -625,7 +625,7 @@ typedef ptrdiff_t  FT_PtrDist;
   }
 
 
-#ifndef FT_LONG64
+#ifndef FT_INT64
 
   /**************************************************************************
    *
@@ -1015,11 +1015,11 @@ typedef ptrdiff_t  FT_PtrDist;
 
   /*
    * For now, the code that depends on `BEZIER_USE_DDA` requires `FT_Int64`
-   * to be defined.  If `FT_LONG64` is not defined, meaning there is no
+   * to be defined.  If `FT_INT64` is not defined, meaning there is no
    * 64-bit type available, disable it to avoid compilation errors.  See for
    * example https://gitlab.freedesktop.org/freetype/freetype/-/issues/1071.
    */
-#if !defined( FT_LONG64 )
+#if !defined( FT_INT64 )
 #  undef BEZIER_USE_DDA
 #  define BEZIER_USE_DDA  0
 #endif