diff --git a/Makefile b/Makefile
index 0443365..ccad249 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 all:
-	g++ -g -o inspectrum inputsource.cpp main.cpp `wx-config --cxxflags --libs` -lfftw3f
+	g++ -std=c++11 -g -o inspectrum inputsource.cpp main.cpp `wx-config --cxxflags --libs` -lfftw3f
 
 clean:
 	rm inspectrum
diff --git a/inputsource.cpp b/inputsource.cpp
index b1f7d01..6a6b1c3 100644
--- a/inputsource.cpp
+++ b/inputsource.cpp
@@ -26,7 +26,7 @@ InputSource::InputSource(const char *filename, int fft_size) {
     m_fftw_out = (fftwf_complex*)fftwf_malloc(sizeof(fftwf_complex) * m_fft_size);
     m_fftw_plan = fftwf_plan_dft_1d(m_fft_size, m_fftw_in, m_fftw_out, FFTW_FORWARD, FFTW_MEASURE);
 
-    m_window = new float[m_fft_size];
+    m_window.reset(new float[m_fft_size]);
     for (int i = 0; i < m_fft_size; i++) {
         m_window[i] = 0.5f * (1.0f - cos(Tau * i / (m_fft_size - 1)));
     }
@@ -36,8 +36,6 @@ InputSource::InputSource(const char *filename, int fft_size) {
 }
 
 InputSource::~InputSource() {
-    delete[] m_window;
-
     fftwf_destroy_plan(m_fftw_plan);
     fftwf_free(m_fftw_in);
     fftwf_free(m_fftw_out);
diff --git a/inputsource.h b/inputsource.h
index 0d5b543..7ce2b3b 100644
--- a/inputsource.h
+++ b/inputsource.h
@@ -1,5 +1,6 @@
 #pragma once
 #include <fftw3.h>
+#include <memory>
 
 class InputSource
 {
@@ -13,7 +14,7 @@ private:
     fftwf_complex *m_fftw_out;
     fftwf_plan m_fftw_plan;
 
-    float *m_window;
+    std::unique_ptr<float[]> m_window;
 
     int m_zoom;
     int m_max_zoom;