1 files changed, 1 insertions, 1 deletions
diff --git a/windows.c b/windows.c
index 7287478..5735850 100644
--- a/windows.c
+++ b/windows.c
@@ -104,7 +104,7 @@ void debug_printf(const char *fmt, ...)
     static int debugging = -1;
 
     if (debugging == -1)
-        debugging = getenv("DEBUG_PUZZLES") ? 1 : 0;
+        debugging = getenv_bool("DEBUG_PUZZLES", false);
 
     if (debugging) {
         va_start(ap, fmt);