diff --git a/src/modules/graphics/opengl/Canvas.cpp b/src/modules/graphics/opengl/Canvas.cpp
index 1e80b07c6..c61dae7f2 100644
--- a/src/modules/graphics/opengl/Canvas.cpp
+++ b/src/modules/graphics/opengl/Canvas.cpp
@@ -625,7 +625,7 @@ void Canvas::drawv(const Matrix &t, const Vertex *v)
 	glVertexAttribPointer(ATTRIB_TEXCOORD, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), &v[0].s);
 
 	gl.prepareDraw();
-	gl.drawArrays(GL_QUADS, 0, 4);
+	gl.drawArrays(GL_TRIANGLE_FAN, 0, 4);
 
 	glDisableVertexAttribArray(ATTRIB_TEXCOORD);
 	glDisableVertexAttribArray(ATTRIB_POS);
diff --git a/src/modules/graphics/opengl/Image.cpp b/src/modules/graphics/opengl/Image.cpp
index d34edf559..7ca95c970 100644
--- a/src/modules/graphics/opengl/Image.cpp
+++ b/src/modules/graphics/opengl/Image.cpp
@@ -434,7 +434,7 @@ void Image::drawv(const Matrix &t, const Vertex *v)
 	glVertexAttribPointer(ATTRIB_TEXCOORD, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), &v[0].s);
 
 	gl.prepareDraw();
-	gl.drawArrays(GL_QUADS, 0, 4);
+	gl.drawArrays(GL_TRIANGLE_FAN, 0, 4);
 
 	glDisableVertexAttribArray(ATTRIB_TEXCOORD);
 	glDisableVertexAttribArray(ATTRIB_POS);