diff --git a/cobc/cobc.c b/cobc/cobc.c
index 8b15430f3..3c1ceb401 100644
--- a/cobc/cobc.c
+++ b/cobc/cobc.c
@@ -567,7 +567,7 @@ static const char	*const cob_csyns[] = {
 
 #define COB_NUM_CSYNS	sizeof(cob_csyns) / sizeof(cob_csyns[0])
 
-static const char short_options[] = "hVivqECScbmxjdFOPgwo:t:T:I:L:l:D:K:k:";
+static const char short_options[] = "hVivqECScbmxjdFOgwo:P:t:T:I:L:l:D:K:k:";
 
 #define	CB_NO_ARG	no_argument
 #define	CB_RQ_ARG	required_argument
@@ -9184,6 +9184,9 @@ main (int argc, char **argv)
 	memset (cb_listing_header, 0, sizeof (cb_listing_header));
 	/* If -P=file specified, all lists go to this file */
 	if (cobc_list_file) {
+		if (strcmp (cobc_list_file, COB_DASH) == 0) {
+			cb_listing_file = stdout;
+		} else
 		if (cb_unix_lf) {
 			cb_listing_file = fopen (cobc_list_file, "wb");
 		} else {
@@ -9269,7 +9272,10 @@ main (int argc, char **argv)
 	}
 
 	if (cobc_list_file) {
-		fclose (cb_listing_file);
+		if (cb_listing_file != stdout)
+			fclose (cb_listing_file);
+		else
+			fflush (stdout);
 		cb_listing_file = NULL;
 	}
 
diff --git a/tests/testsuite.src/syn_copy.at b/tests/testsuite.src/syn_copy.at
index c10562233..f6a64b5f5 100644
--- a/tests/testsuite.src/syn_copy.at
+++ b/tests/testsuite.src/syn_copy.at
@@ -946,9 +946,7 @@ AT_DATA([prog.cob], [
        REPLACE OFF.
 ])
 
-AT_CHECK([$COMPILE_ONLY -P=preproc.lst prog.cob])
-
-AT_CHECK([cat preproc.lst], [0],
+AT_CHECK([$COMPILE_ONLY -P- prog.cob], [0],
 [     1 @&t@
      2  IDENTIFICATION   DIVISION.
      3  PROGRAM-ID.      prog.