--- a/tools/lib64gfx.c	Sun Nov 19 04:02:18 2023 +0200
+++ b/tools/lib64gfx.c	Sun Nov 19 18:33:52 2023 +0200
@@ -1533,7 +1533,7 @@
             return DMERR_OUT_OF_DATA;
 
         dmGrowBufConstCopyOffs(&tmp, buf, probeOffs);
-        if (dmC64ProbeBMP(&tmp, fmt) == DM_PROBE_SCORE_false)
+        if (dmC64ProbeBMP(&tmp, fmt) == DM_PROBE_SCORE_FALSE)
             return DMERR_NOT_SUPPORTED;
     }
 
@@ -1673,12 +1673,12 @@
 // is found, pointer to format description is set to *pfmt.
 int dmC64ProbeBMP(const DMGrowBuf *buf, const DMC64ImageFormat **pfmt)
 {
-    int scoreMax = DM_PROBE_SCORE_false, scoreIndex = -1;
+    int scoreMax = DM_PROBE_SCORE_FALSE, scoreIndex = -1;
 
     for (int i = 0; i < ndmC64ImageFormats; i++)
     {
         const DMC64ImageFormat *fmt = &dmC64ImageFormats[i];
-        int score = DM_PROBE_SCORE_false;
+        int score = DM_PROBE_SCORE_FALSE;
         if (fmt->probe == NULL && fmt->size > 0 && fmt->addr > 0)
         {
             // Generic probe just checks matching size and load address
@@ -1702,7 +1702,7 @@
         return scoreMax;
     }
     else
-        return DM_PROBE_SCORE_false;
+        return DM_PROBE_SCORE_FALSE;
 }