diff --git a/Canvas.cpp b/Canvas.cpp
index 7852747..7eb04ba 100644
--- a/Canvas.cpp
+++ b/Canvas.cpp
@@ -180,8 +180,8 @@ void Canvas::output_file(const char * filename){
     }
 
 
-    delete max_int;
-    delete power;
+    delete[] max_int;
+    delete[] power;
 
     std::cout << "ready for writing file i suppose: " << filename << std::endl;
 
diff --git a/kernels/KernelBasicParameter.cpp b/kernels/KernelBasicParameter.cpp
index 59e8276..cce6c6f 100644
--- a/kernels/KernelBasicParameter.cpp
+++ b/kernels/KernelBasicParameter.cpp
@@ -38,7 +38,7 @@ void KernelBasicParameter::init(){
 }
 
 void KernelBasicParameter::dealloc(){
-	delete parameters;
+	delete[] parameters;
 }
 
 
diff --git a/kernels/KernelBasicVector.cpp b/kernels/KernelBasicVector.cpp
index 4bdf8f9..b8398ec 100644
--- a/kernels/KernelBasicVector.cpp
+++ b/kernels/KernelBasicVector.cpp
@@ -33,8 +33,8 @@ void KernelBasicVector::init(){
 }
 
 void KernelBasicVector::dealloc(){
-	delete vectorOld;
-	delete vectorNew;
+	delete[] vectorOld;
+	delete[] vectorNew;
 }