diff --git a/add_on/scripthelper/scripthelper.cpp b/add_on/scripthelper/scripthelper.cpp
index 4af4fde..5e90ece 100644
--- a/add_on/scripthelper/scripthelper.cpp
+++ b/add_on/scripthelper/scripthelper.cpp
@@ -982,6 +982,7 @@ void RegisterExceptionRoutines(asIScriptEngine *engine)
 
 	r = engine->RegisterGlobalFunction("void throw(const string &in)", asFUNCTION(ScriptThrow), asCALL_CDECL); assert(r >= 0);
 	r = engine->RegisterGlobalFunction("string getExceptionInfo()", asFUNCTION(ScriptGetExceptionInfo), asCALL_CDECL); assert(r >= 0);
+    (void)r;
 }
 
 END_AS_NAMESPACE
diff --git a/add_on/scriptmath/scriptmath.cpp b/add_on/scriptmath/scriptmath.cpp
index 6d9a62c..5814d73 100644
--- a/add_on/scriptmath/scriptmath.cpp
+++ b/add_on/scriptmath/scriptmath.cpp
@@ -214,6 +214,7 @@ void RegisterScriptMath_Native(asIScriptEngine *engine)
 	r = engine->RegisterGlobalFunction("double floor(double)", asFUNCTIONPR(floor, (double), double), asCALL_CDECL); assert( r >= 0 );
 	r = engine->RegisterGlobalFunction("double fraction(double)", asFUNCTIONPR(fraction, (double), double), asCALL_CDECL); assert( r >= 0 );
 #endif
+    (void)r;
 }
 
 #if AS_USE_FLOAT
@@ -350,6 +351,7 @@ void RegisterScriptMath_Generic(asIScriptEngine *engine)
 	r = engine->RegisterGlobalFunction("double floor(double)", asFUNCTION(floor_generic), asCALL_GENERIC); assert( r >= 0 );
 	r = engine->RegisterGlobalFunction("double fraction(double)", asFUNCTION(fraction_generic), asCALL_GENERIC); assert( r >= 0 );
 #endif
+    (void)r;
 }
 
 void RegisterScriptMath(asIScriptEngine *engine)