diff --git a/include/security/openpam.h b/include/security/openpam.h
index 76c982e..cf2c45d 100644
--- a/include/security/openpam.h
+++ b/include/security/openpam.h
@@ -163,6 +163,7 @@ openpam_readline(FILE *_f,
  * Log levels
  */
 enum {
+	PAM_LOG_LIBDEBUG = -1,
 	PAM_LOG_DEBUG,
 	PAM_LOG_VERBOSE,
 	PAM_LOG_NOTICE,
diff --git a/lib/openpam_debug.h b/lib/openpam_debug.h
index 9d5263c..abf30f6 100644
--- a/lib/openpam_debug.h
+++ b/lib/openpam_debug.h
@@ -39,53 +39,53 @@
 #define OPENPAM_DEBUG_INCLUDED
 
 #ifdef OPENPAM_DEBUG
-#define ENTER() openpam_log(PAM_LOG_DEBUG, "entering")
+#define ENTER() openpam_log(PAM_LOG_LIBDEBUG, "entering")
 #define ENTERI(i) do { \
 	int i_ = (i); \
 	if (i_ > 0 && i_ < PAM_NUM_ITEMS) \
-		openpam_log(PAM_LOG_DEBUG, "entering: %s", pam_item_name[i_]); \
+		openpam_log(PAM_LOG_LIBDEBUG, "entering: %s", pam_item_name[i_]); \
 	else \
-		openpam_log(PAM_LOG_DEBUG, "entering: %d", i_); \
+		openpam_log(PAM_LOG_LIBDEBUG, "entering: %d", i_); \
 } while (0)
 #define ENTERN(n) do { \
 	int n_ = (n); \
-	openpam_log(PAM_LOG_DEBUG, "entering: %d", n_); \
+	openpam_log(PAM_LOG_LIBDEBUG, "entering: %d", n_); \
 } while (0)
 #define ENTERS(s) do { \
 	const char *s_ = (s); \
 	if (s_ == NULL) \
-		openpam_log(PAM_LOG_DEBUG, "entering: NULL"); \
+		openpam_log(PAM_LOG_LIBDEBUG, "entering: NULL"); \
 	else \
-		openpam_log(PAM_LOG_DEBUG, "entering: '%s'", s_); \
+		openpam_log(PAM_LOG_LIBDEBUG, "entering: '%s'", s_); \
 } while (0)
-#define	RETURNV() openpam_log(PAM_LOG_DEBUG, "returning")
+#define	RETURNV() openpam_log(PAM_LOG_LIBDEBUG, "returning")
 #define RETURNC(c) do { \
 	int c_ = (c); \
 	if (c_ >= 0 && c_ < PAM_NUM_ERRORS) \
-		openpam_log(PAM_LOG_DEBUG, "returning %s", pam_err_name[c_]); \
+		openpam_log(PAM_LOG_LIBDEBUG, "returning %s", pam_err_name[c_]); \
 	else \
-		openpam_log(PAM_LOG_DEBUG, "returning %d!", c_); \
+		openpam_log(PAM_LOG_LIBDEBUG, "returning %d!", c_); \
 	return (c_); \
 } while (0)
 #define	RETURNN(n) do { \
 	int n_ = (n); \
-	openpam_log(PAM_LOG_DEBUG, "returning %d", n_); \
+	openpam_log(PAM_LOG_LIBDEBUG, "returning %d", n_); \
 	return (n_); \
 } while (0)
 #define	RETURNP(p) do { \
 	void *p_ = (p); \
 	if (p_ == NULL) \
-		openpam_log(PAM_LOG_DEBUG, "returning NULL"); \
+		openpam_log(PAM_LOG_LIBDEBUG, "returning NULL"); \
 	else \
-		openpam_log(PAM_LOG_DEBUG, "returning %p", p_); \
+		openpam_log(PAM_LOG_LIBDEBUG, "returning %p", p_); \
 	return (p_); \
 } while (0)
 #define	RETURNS(s) do { \
 	const char *s_ = (s); \
 	if (s_ == NULL) \
-		openpam_log(PAM_LOG_DEBUG, "returning NULL"); \
+		openpam_log(PAM_LOG_LIBDEBUG, "returning NULL"); \
 	else \
-		openpam_log(PAM_LOG_DEBUG, "returning '%s'", s_); \
+		openpam_log(PAM_LOG_LIBDEBUG, "returning '%s'", s_); \
 	return (s_); \
 } while (0)
 #else
diff --git a/lib/openpam_log.c b/lib/openpam_log.c
index 27967cd..861553b 100644
--- a/lib/openpam_log.c
+++ b/lib/openpam_log.c
@@ -71,6 +71,7 @@ openpam_log(int level, const char *fmt, ...)
 	int priority;
 
 	switch (level) {
+	case PAM_LOG_LIBDEBUG:
 	case PAM_LOG_DEBUG:
 		if (!openpam_debug)
 			return;