diff --git a/lib/util/debug.c b/lib/util/debug.c
index 84b197cf607..73e5c5b485c 100644
--- a/lib/util/debug.c
+++ b/lib/util/debug.c
@@ -767,7 +767,7 @@ void check_log_size( void )
  This is called by dbghdr() and format_debug_text().
 ************************************************************************/
 
- int Debug1( const char *format_str, ... )
+static int Debug1( const char *format_str, ... )
 {
 	va_list ap;
 	int old_errno = errno;
diff --git a/lib/util/debug.h b/lib/util/debug.h
index 01ef2a01d63..a560c5e1879 100644
--- a/lib/util/debug.h
+++ b/lib/util/debug.h
@@ -36,7 +36,6 @@
 #define MAX_DEBUG_LEVEL 1000
 #endif
 
-int  Debug1( const char *, ... ) PRINTF_ATTRIBUTE(1,2);
 bool dbgtext( const char *, ... ) PRINTF_ATTRIBUTE(1,2);
 bool dbghdrclass( int level, int cls, const char *location, const char *func);
 bool dbghdr( int level, const char *location, const char *func);