diff --git a/src/ScriptResolving/AngelScript/AngelScriptTypeInfo.hpp b/src/ScriptResolving/AngelScript/AngelScriptTypeInfo.hpp
index bf6e90d..a1be971 100644
--- a/src/ScriptResolving/AngelScript/AngelScriptTypeInfo.hpp
+++ b/src/ScriptResolving/AngelScript/AngelScriptTypeInfo.hpp
@@ -89,9 +89,9 @@ public:
                          "void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit)");
     SCRIPT_HOOK_FUNCTION(OnAfterHits, "void OnAfterHits(ExecutingMove@ attack, Pokemon@ target)");
     SCRIPT_HOOK_FUNCTION(ModifyEffectChance,
-                         "void ModifyEffectChance(ExecutingMove@ attack, Pokemon@ target, uint16& chance)");
+                         "void ModifyEffectChance(ExecutingMove@ attack, Pokemon@ target, float& chance)");
     SCRIPT_HOOK_FUNCTION(ModifyIncomingEffectChance,
-                         "void ModifyIncomingEffectChance(ExecutingMove@ attack, Pokemon@ target, uint16& chance)");
+                         "void ModifyIncomingEffectChance(ExecutingMove@ attack, Pokemon@ target, float& chance)");
 };
 
 #undef SCRIPT_HOOK_FUNCTION
diff --git a/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp b/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp
index 454e297..e2f1b87 100644
--- a/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp
+++ b/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp
@@ -21,8 +21,8 @@ shared abstract class PkmnScript {
     void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@ target, uint8 hit){};
     void OnAfterHits(ExecutingMove@ attack, Pokemon@ target){};
 
-    void ModifyEffectChance(ExecutingMove@ attack, Pokemon@ target, uint16& chance){};
-    void ModifyIncomingEffectChance(ExecutingMove@ attack, Pokemon@ target, uint16& chance){};
+    void ModifyEffectChance(ExecutingMove@ attack, Pokemon@ target, float& chance){};
+    void ModifyIncomingEffectChance(ExecutingMove@ attack, Pokemon@ target, float& chance){};
 }
 )");
     assert(r >= 0);