diff --git a/templates/definition/meter/deye-hybrid-3p.yaml b/templates/definition/meter/deye-hybrid-3p.yaml
index b0789521e..dbc59f458 100644
--- a/templates/definition/meter/deye-hybrid-3p.yaml
+++ b/templates/definition/meter/deye-hybrid-3p.yaml
@@ -311,8 +311,9 @@ render: |
           scale: 10
           {{- end }}
     script: |
+      // float64 is required: a whole-number input arrives as an int literal
       // round, the watt conversion does not reproduce the written percent exactly
-      p := int(limit*100/{{ maxf .maxacpower 1 }} + 0.5)
+      p := int(float64(limit)*100/{{ maxf .maxacpower 1 }} + 0.5)
       if p > 100 {
         p = 100
       }