diff --git a/frontend/app/src/main/java/com/example/speechbuddy/repository/WeightTableRepository.kt b/frontend/app/src/main/java/com/example/speechbuddy/repository/WeightTableRepository.kt
index b3fb104d..9cd4166f 100644
--- a/frontend/app/src/main/java/com/example/speechbuddy/repository/WeightTableRepository.kt
+++ b/frontend/app/src/main/java/com/example/speechbuddy/repository/WeightTableRepository.kt
@@ -146,7 +146,7 @@ class WeightTableRepository @Inject constructor(
         val listOfSymCntPairs = mutableListOf<Pair<Symbol, Int>>()
         val weights = oneWeightRow[0].weights
 
-        for (i in 0 until allSymbolList.size) {
+        for (i in allSymbolList.indices) {
             listOfSymCntPairs.add(Pair(allSymbolList[i], weights[i]))
         }
 
@@ -189,11 +189,9 @@ class WeightTableRepository @Inject constructor(
                 val weights = targetRow.weights
                 val preSymbolWeights = weights.toIntArray() // 앞 symbol의 weights
 
-                preSymbolWeights[dbIndex2] += 15
+                preSymbolWeights[dbIndex2] += 10
 
-                val aftSymbolWeights = preSymbolWeights
-
-                updateWeightRow(targetRow, aftSymbolWeights.toList())
+                updateWeightRow(targetRow, preSymbolWeights.toList())
             }
         }
     }