diff --git a/native/jni/src/correction.h b/native/jni/src/correction.h
index 34f794d..f0d6210 100644
--- a/native/jni/src/correction.h
+++ b/native/jni/src/correction.h
@@ -119,7 +119,7 @@
     // proximity info state
     void initInputParams(const ProximityInfo *proximityInfo, const int *inputCodes,
             const int inputSize, const int *xCoordinates, const int *yCoordinates) {
-        mProximityInfoState.initInputParams(0, MAX_POINT_TO_KEY_LENGTH,
+        mProximityInfoState.initInputParams(0, static_cast<float>(MAX_VALUE_FOR_WEIGHTING),
                 proximityInfo, inputCodes, inputSize, xCoordinates, yCoordinates, 0, 0, false);
     }
 
diff --git a/native/jni/src/defines.h b/native/jni/src/defines.h
index 5546876..11dc3d2 100644
--- a/native/jni/src/defines.h
+++ b/native/jni/src/defines.h
@@ -341,8 +341,9 @@
 #define MAX_DEPTH_MULTIPLIER 3
 #define FIRST_WORD_INDEX 0
 
-// Max Distance between point to key
-#define MAX_POINT_TO_KEY_LENGTH 10000000
+// Max value for length, distance and probability which are used in weighting
+// TODO: Remove
+#define MAX_VALUE_FOR_WEIGHTING 10000000
 
 // The max number of the keys in one keyboard layout
 #define MAX_KEY_COUNT_IN_A_KEYBOARD 64
diff --git a/native/jni/src/proximity_info.cpp b/native/jni/src/proximity_info.cpp
index 81eb0b3..74b5e01 100644
--- a/native/jni/src/proximity_info.cpp
+++ b/native/jni/src/proximity_info.cpp
@@ -204,6 +204,6 @@
     if (keyId0 >= 0 && keyId1 >= 0) {
         return mKeyKeyDistancesG[keyId0][keyId1];
     }
-    return MAX_POINT_TO_KEY_LENGTH;
+    return MAX_VALUE_FOR_WEIGHTING;
 }
 } // namespace latinime
diff --git a/native/jni/src/proximity_info_state.cpp b/native/jni/src/proximity_info_state.cpp
index 3ecaade..00e7ffc 100644
--- a/native/jni/src/proximity_info_state.cpp
+++ b/native/jni/src/proximity_info_state.cpp
@@ -170,7 +170,7 @@
         return 0.0f;
     }
     // If the char is not a key on the keyboard then return the max length.
-    return MAX_POINT_TO_KEY_LENGTH;
+    return static_cast<float>(MAX_VALUE_FOR_WEIGHTING);
 }
 
 float ProximityInfoState::getPointToKeyLength_G(const int inputIndex, const int codePoint) const {
@@ -314,6 +314,6 @@
     if (it != mCharProbabilities[index].end()) {
         return it->second;
     }
-    return static_cast<float>(MAX_POINT_TO_KEY_LENGTH);
+    return static_cast<float>(MAX_VALUE_FOR_WEIGHTING);
 }
 } // namespace latinime
diff --git a/native/jni/src/proximity_info_state_utils.cpp b/native/jni/src/proximity_info_state_utils.cpp
index 2bf327f..2ca39f9 100644
--- a/native/jni/src/proximity_info_state_utils.cpp
+++ b/native/jni/src/proximity_info_state_utils.cpp
@@ -645,7 +645,7 @@
         return min((*SampledDistanceCache_G)[index] * scale, maxPointToKeyLength);
     }
     // If the char is not a key on the keyboard then return the max length.
-    return static_cast<float>(MAX_POINT_TO_KEY_LENGTH);
+    return static_cast<float>(MAX_VALUE_FOR_WEIGHTING);
 }
 
 /* static */ float ProximityInfoStateUtils::getPointToKeyByIdLength(const float maxPointToKeyLength,
@@ -678,7 +678,7 @@
         const float currentAngle = getPointAngle(sampledInputXs, sampledInputYs, i);
         const float speedRate = (*sampledSpeedRates)[i];
 
-        float nearestKeyDistance = static_cast<float>(MAX_POINT_TO_KEY_LENGTH);
+        float nearestKeyDistance = static_cast<float>(MAX_VALUE_FOR_WEIGHTING);
         for (int j = 0; j < keyCount; ++j) {
             if ((*SampledNearKeySets)[i].test(j)) {
                 const float distance = getPointToKeyByIdLength(
@@ -1016,7 +1016,7 @@
     float sumLogProbability = 0.0f;
     // TODO: Current implementation is greedy algorithm. DP would be efficient for many cases.
     for (int i = 0; i < sampledInputSize && index < MAX_WORD_LENGTH - 1; ++i) {
-        float minLogProbability = static_cast<float>(MAX_POINT_TO_KEY_LENGTH);
+        float minLogProbability = static_cast<float>(MAX_VALUE_FOR_WEIGHTING);
         int character = NOT_AN_INDEX;
         for (hash_map_compat<int, float>::const_iterator it = (*charProbabilities)[i].begin();
                 it != (*charProbabilities)[i].end(); ++it) {
diff --git a/native/jni/src/proximity_info_utils.h b/native/jni/src/proximity_info_utils.h
index 51cafba..71c97e3 100644
--- a/native/jni/src/proximity_info_utils.h
+++ b/native/jni/src/proximity_info_utils.h
@@ -226,7 +226,7 @@
             const int *const keyYCoordinates, const int *const keyWidths, const int *keyHeights,
             const int keyId, const int x, const int y) {
         // NOT_A_ID is -1, but return whenever < 0 just in case
-        if (keyId < 0) return MAX_POINT_TO_KEY_LENGTH;
+        if (keyId < 0) return MAX_VALUE_FOR_WEIGHTING;
         const int left = keyXCoordinates[keyId];
         const int top = keyYCoordinates[keyId];
         const int right = left + keyWidths[keyId];