diff --git a/src/coredump/coredump.c b/src/coredump/coredump.c
index d3fc059fbb..e54c69a931 100644
--- a/src/coredump/coredump.c
+++ b/src/coredump/coredump.c
@@ -340,7 +340,7 @@ static int save_external_coredump(
 
         r = safe_atou64(context[CONTEXT_RLIMIT], &rlimit);
         if (r < 0)
-                return log_error_errno(r, "Failed to parse resource limit: %s", context[CONTEXT_RLIMIT]);
+                return log_error_errno(r, "Failed to parse resource limit '%s': %m", context[CONTEXT_RLIMIT]);
         if (rlimit < page_size()) {
                 /* Is coredumping disabled? Then don't bother saving/processing the coredump.
                  * Anything below PAGE_SIZE cannot give a readable coredump (the kernel uses
diff --git a/src/coredump/coredumpctl.c b/src/coredump/coredumpctl.c
index 8c08c64884..49df8656b6 100644
--- a/src/coredump/coredumpctl.c
+++ b/src/coredump/coredumpctl.c
@@ -237,13 +237,13 @@ static int parse_argv(int argc, char *argv[]) {
                 case 'S':
                         r = parse_timestamp(optarg, &arg_since);
                         if (r < 0)
-                                return log_error_errno(r, "Failed to parse timestamp: %s", optarg);
+                                return log_error_errno(r, "Failed to parse timestamp '%s': %m", optarg);
                         break;
 
                 case 'U':
                         r = parse_timestamp(optarg, &arg_until);
                         if (r < 0)
-                                return log_error_errno(r, "Failed to parse timestamp: %s", optarg);
+                                return log_error_errno(r, "Failed to parse timestamp '%s': %m", optarg);
                         break;
 
                 case 'F':