diff --git a/libexec/rtld-elf/Makefile b/libexec/rtld-elf/Makefile
index 52befa6a0d4..a51acf68068 100644
--- a/libexec/rtld-elf/Makefile
+++ b/libexec/rtld-elf/Makefile
@@ -2,7 +2,7 @@
 
 # Use the following command to build local debug version of dynamic
 # linker:
-# make DEBUG_FLAGS=-g DEBUG=-DDEBUG WITHOUT_TESTS=yes all
+# make DEBUG_FLAGS=-g WITHOUT_TESTS=yes all
 
 .include <src.opts.mk>
 PACKAGE=	clibs
diff --git a/libexec/rtld-elf/debug.h b/libexec/rtld-elf/debug.h
index c0528294f1d..1ad0323b42f 100644
--- a/libexec/rtld-elf/debug.h
+++ b/libexec/rtld-elf/debug.h
@@ -39,10 +39,10 @@
 #include <string.h>
 #include <unistd.h>
 
-extern void debug_printf(const char *, ...) __printflike(1, 2);
+void debug_printf(const char *, ...) __printflike(1, 2);
 extern int debug;
 
-#ifdef DEBUG
+#ifndef NO_LD_DEBUG
 #define dbg(...)	debug_printf(__VA_ARGS__)
 #else
 #define dbg(...)	((void) 0)