diff --git a/src/GPU_OpenGL.cpp b/src/GPU_OpenGL.cpp
index f60ca971..fb04ca01 100644
--- a/src/GPU_OpenGL.cpp
+++ b/src/GPU_OpenGL.cpp
@@ -170,7 +170,8 @@ void SetRenderSettings(RenderSettings& settings)
     glBindTexture(GL_TEXTURE_2D, CompScreenOutputTex);
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, ScreenW, ScreenH, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
     // fill the padding
-    u8 zeroPixels[ScreenW*2*scale*4] = {0};
+    u8 zeroPixels[ScreenW*2*scale*4];
+    memset(zeroPixels, 0, sizeof(zeroPixels));
     glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 192*scale, ScreenW, 2*scale, GL_RGBA, GL_UNSIGNED_BYTE, zeroPixels);
 
     GLenum fbassign[] = {GL_COLOR_ATTACHMENT0};
diff --git a/src/frontend/qt_sdl/main.cpp b/src/frontend/qt_sdl/main.cpp
index d7821fa7..dccc7f18 100644
--- a/src/frontend/qt_sdl/main.cpp
+++ b/src/frontend/qt_sdl/main.cpp
@@ -909,7 +909,8 @@ void ScreenPanelGL::initializeGL()
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, paddedHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
     // fill the padding
-    u8 zeroData[256*4*4] = {0};
+    u8 zeroData[256*4*4];
+    memset(zeroData, 0, sizeof(zeroData));
     glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 192, 256, 2, GL_RGBA, GL_UNSIGNED_BYTE, zeroData);
 
     OSD::Init(this);