diff --git a/cobc/ChangeLog b/cobc/ChangeLog
index aeb1c5bf0..577c4a6f5 100644
--- a/cobc/ChangeLog
+++ b/cobc/ChangeLog
@@ -116,16 +116,14 @@
 
 2024-03-15  Fabrice Le Fessant <fabrice.le_fessant@ocamlpro.com>
 
-	* cobc.c: add new flags to output dependencies following gcc: -M to
-	  output deps only, -MD to output deps while compiling (in .d files),
-	  -MP to output phony targets, -MG to keep missing copybooks,
-	  -MQ <target> to Makefile-quote target
-	* flags.def: -fcopybook-deps outputs only copybook names instead
-	  of file paths. -fcopybook-deps also forces -E, -foneline-deps,
-	  -MT=copybooks, disables errors on missing copybooks and removes
-	  output on stdout.
-        * typeck.c (check_argument_conformance): check that param is well defined
-	  to prevent a segfault
+	* cobc.c, help.c, pplex.l: add new flags to output dependencies following
+	  gcc: -M to output deps only, -MD to output deps while compiling (in
+	  .d files), -MP to output phony targets, -MG to keep missing copybooks,
+	  -MQ <target> to Makefile-quote target ; add -fcopybook-deps to
+	  output only copybook names instead of file paths. -fcopybook-deps
+	  also forces -E, -foneline-deps, -MT=copybooks, disables errors on
+	  missing copybooks and removes output on stdout
+	* pplex.l (cb_text_list): prevent duplicates
 
 2024-02-19  Boris Eng <boris.eng@ocamlpro.com>
 
diff --git a/cobc/typeck.c b/cobc/typeck.c
index aa3a66bc7..1b2a5039a 100644
--- a/cobc/typeck.c
+++ b/cobc/typeck.c
@@ -3588,7 +3588,6 @@ check_argument_conformance (struct cb_program *program, cb_tree argument_tripple
 	} else {
 		arg_field = NULL;
 	}
-	if (!CB_FIELD_P(param)) return;
 	param_field = CB_FIELD_PTR(CB_VALUE(param));
 
 	/*