diff --git a/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/handler/MiIoAbstractHandler.java b/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/handler/MiIoAbstractHandler.java
index 06163a3978160..0edcd422cfb4d 100644
--- a/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/handler/MiIoAbstractHandler.java
+++ b/bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/handler/MiIoAbstractHandler.java
@@ -209,9 +209,11 @@ protected int sendCommand(String commandString) {
         try {
             String command = commandString.trim();
             String param = "[]";
-            int loc = command.indexOf("[");
-            loc = (loc > 0 ? loc : command.indexOf("{"));
-            if (loc > 0) {
+            int sb = command.indexOf("[");
+            int cb = command.indexOf("{");
+            logger.debug("locs {}, {}", sb, cb);
+            if (Math.max(sb, cb) > 0) {
+                int loc = (Math.min(sb, cb) > 0 ? Math.min(sb, cb) : Math.max(sb, cb));
                 param = command.substring(loc).trim();
                 command = command.substring(0, loc).trim();
             }