1 files changed, 1 insertions, 1 deletions
diff --git a/src/Fl_SVG_Image.cxx b/src/Fl_SVG_Image.cxx
index ca52a55f7..a615ccb4a 100644
--- a/src/Fl_SVG_Image.cxx
+++ b/src/Fl_SVG_Image.cxx
@@ -119,7 +119,7 @@ static char *svg_inflate(gzFile gzf, // can be a file or the read end of a pipe
   do {
     if (is_compressed && p + size > out + out_size) {
       out_size += size;
-      unsigned delta = (p - out);
+      size_t delta = (p - out);
       out = (char*)realloc(out, out_size + 1);
       p = out + delta;
     }