1 files changed, 1 insertions, 1 deletions
diff --git a/snesgfx.c b/snesgfx.c
index 3c59ed8..d19e5bb 100644
--- a/snesgfx.c
+++ b/snesgfx.c
@@ -195,7 +195,7 @@ int main(int argc, char *argv[])
     int colours = 4;
     char *source = NULL;
     char *dest = NULL;
-    char header[8] = {0};
+    unsigned char header[8] = {0};
     FILE *input;
     FILE *output;
     png_structp png;