diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index bf4100d..cc3a8b6 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -1383,8 +1383,9 @@
 			    EMSG2_RET_FAIL(
 			       _("E678: Invalid character after %s%%[dxouU]"),
 				    reg_magic == MAGIC_ALL);
+			/* A NUL is stored in the text as NL */
 			/* TODO: what if a composing character follows? */
-			EMIT(nr);
+			EMIT(nr == 0 ? 0x0a : nr);
 		    }
 		    break;