debug origin lines
diff --git a/libasn1compiler/asn1compiler.h b/libasn1compiler/asn1compiler.h
index 7178282..2901d40 100644
--- a/libasn1compiler/asn1compiler.h
+++ b/libasn1compiler/asn1compiler.h
@@ -92,6 +92,11 @@
 	 * Generate top-level configure.ac and Makefile.am
 	 */
 	A1C_GEN_AUTOTOOLS_EXAMPLE	= 0x200000,
+	/*
+	 * Print the source of generated lines.
+	 * -debug-output-origin-lines
+	 */
+	A1C_DEBUG_OUTPUT_ORIGIN_LINES = 0x400000,
 };
 
 /*