diff --git a/src/analyze/analyze-unit-gdb.c b/src/analyze/analyze-unit-gdb.c
index 92b8a5cb5b..fc06f86030 100644
--- a/src/analyze/analyze-unit-gdb.c
+++ b/src/analyze/analyze-unit-gdb.c
@@ -32,7 +32,7 @@ int verb_unit_gdb(int argc, char *argv[], void *userdata) {
         int r;
 
         if (arg_transport != BUS_TRANSPORT_LOCAL)
-                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot spawn a debugger for a remote service");
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot spawn a debugger for a remote service.");
 
         r = unit_name_mangle_with_suffix(argv[1], "as unit", UNIT_NAME_MANGLE_WARN, ".service", &unit);
         if (r < 0)
@@ -72,7 +72,7 @@ int verb_unit_gdb(int argc, char *argv[], void *userdata) {
                 return log_oom();
 
         if (!STR_IN_SET(arg_debugger, "gdb", "lldb"))
-                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The debugger must be either 'gdb' or 'lldb'");
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The debugger must be either 'gdb' or 'lldb'.");
 
         if (streq(arg_debugger, "gdb")) {
                 r = strv_extendf(&debugger_call, "--pid=" PID_FMT, pid);
diff --git a/src/analyze/analyze-unit-shell.c b/src/analyze/analyze-unit-shell.c
index 6d241eb6e1..6990aa6d9b 100644
--- a/src/analyze/analyze-unit-shell.c
+++ b/src/analyze/analyze-unit-shell.c
@@ -28,7 +28,7 @@ int verb_unit_shell(int argc, char *argv[], void *userdata) {
         int r;
 
         if (arg_transport != BUS_TRANSPORT_LOCAL)
-                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot spawn a unit shell for a remote service");
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot spawn a unit shell for a remote service.");
 
         r = unit_name_mangle_with_suffix(argv[1], "as unit", UNIT_NAME_MANGLE_WARN, ".service", &unit);
         if (r < 0)