diff --git a/ccid/sm.c b/ccid/sm.c
index 643f768..c0d8b29 100644
--- a/ccid/sm.c
+++ b/ccid/sm.c
@@ -44,12 +44,14 @@ static const struct sc_asn1_entry c_sm_rapdu[] = {
     { NULL, 0, 0, 0, NULL, NULL }
 };
 
-void bin_log(sc_context_t *ctx, const char *label, const u8 *data, size_t len)
+void _bin_log(sc_context_t *ctx, int type, const char *file, int line,
+        const char *func, const char *label, const u8 *data, size_t len)
 {
     char buf[1024];
 
     sc_hex_dump(ctx, data, len, buf, sizeof buf);
-    sc_debug(ctx, "%s (%u byte%s):\n%s"
+    sc_do_log(ctx, type, file, line, func,
+            "\n%s (%u byte%s):\n%s"
             "======================================================================",
             label, len, len==1?"":"s", buf);
 }
diff --git a/ccid/sm.h b/ccid/sm.h
index 74c638d..a15e993 100644
--- a/ccid/sm.h
+++ b/ccid/sm.h
@@ -53,7 +53,10 @@ int add_iso_pad(const u8 *data, size_t datalen, int block_size, u8 **padded);
 int add_padding(const struct sm_ctx *ctx, const u8 *data, size_t datalen,
         u8 **padded);
 
-void bin_log(sc_context_t *ctx, const char *label, const u8 *data, size_t len);
+#define bin_log(ctx, label, data, len) \
+    _bin_log(ctx, SC_LOG_TYPE_DEBUG, __FILE__, __LINE__, __FUNCTION__, label, data, len)
+void _bin_log(sc_context_t *ctx, int type, const char *file, int line,
+        const char *func, const char *label, const u8 *data, size_t len);
 
 #ifdef  __cplusplus
 }