diff --git a/Outputs/OpenGL/ScanTarget.cpp b/Outputs/OpenGL/ScanTarget.cpp
index b434c0bba..2de6148c7 100644
--- a/Outputs/OpenGL/ScanTarget.cpp
+++ b/Outputs/OpenGL/ScanTarget.cpp
@@ -10,7 +10,6 @@
 
 #include "OpenGL.hpp"
 #include "Primitives/Rectangle.hpp"
-#include "../Log.hpp"
 
 #include <cassert>
 #include <cstring>
@@ -79,9 +78,6 @@ ScanTarget::ScanTarget(GLuint target_framebuffer, float output_gamma) :
 	unprocessed_line_texture_(LineBufferWidth, LineBufferHeight, UnprocessedLineBufferTextureUnit, GL_NEAREST, false),
 	full_display_rectangle_(-1.0f, -1.0f, 2.0f, 2.0f) {
 
-	// Note the OpenGL version.
-	LOG("Constructing scan target with OpenGL " << glGetString(GL_VERSION) << "; shading language version " << glGetString(GL_SHADING_LANGUAGE_VERSION));
-
 	// Ensure proper initialisation of the two atomic pointer sets.
 	read_pointers_.store(write_pointers_);
 	submit_pointers_.store(write_pointers_);
diff --git a/Outputs/OpenGL/ScanTarget.hpp b/Outputs/OpenGL/ScanTarget.hpp
index dbd2fe467..58937daa4 100644
--- a/Outputs/OpenGL/ScanTarget.hpp
+++ b/Outputs/OpenGL/ScanTarget.hpp
@@ -10,6 +10,8 @@
 #define ScanTarget_hpp
 
 #include "../ScanTarget.hpp"
+#include "../Log.hpp"
+
 #include "OpenGL.hpp"
 #include "Primitives/TextureTarget.hpp"
 #include "Primitives/Rectangle.hpp"
@@ -43,6 +45,15 @@ class ScanTarget: public Outputs::Display::ScanTarget {
 		void draw(bool synchronous, int output_width, int output_height);
 
 	private:
+#ifndef NDEBUG
+		struct OpenGLVersionDumper {
+			OpenGLVersionDumper() {
+				// Note the OpenGL version, as the first thing this class does prior to construction.
+				LOG("Constructing scan target with OpenGL " << glGetString(GL_VERSION) << "; shading language version " << glGetString(GL_SHADING_LANGUAGE_VERSION));
+			}
+		} dumper_;
+#endif
+
 		static constexpr int WriteAreaWidth = 2048;
 		static constexpr int WriteAreaHeight = 2048;