diff --git a/Outputs/CRT/Internals/CRTOpenGL.cpp b/Outputs/CRT/Internals/CRTOpenGL.cpp
index d90be15aa..05e4667b6 100644
--- a/Outputs/CRT/Internals/CRTOpenGL.cpp
+++ b/Outputs/CRT/Internals/CRTOpenGL.cpp
@@ -435,7 +435,7 @@ void OpenGLOutputBuilder::set_colour_space_uniforms() {
 	GLfloat rgbToYIQ[] = {0.299f, 0.596f, 0.211f, 0.587f, -0.274f, -0.523f, 0.114f, -0.322f, 0.312f};
 	GLfloat yiqToRGB[] = {1.0f, 1.0f, 1.0f, 0.956f, -0.272f, -1.106f, 0.621f, -0.647f, 1.703f};
 
-	GLfloat *fromRGB, *toRGB;
+	GLfloat *fromRGB = nullptr, *toRGB = nullptr;
 
 	switch(colour_space_) {
 		case ColourSpace::YIQ:
diff --git a/Outputs/CRT/Internals/Shaders/IntermediateShader.cpp b/Outputs/CRT/Internals/Shaders/IntermediateShader.cpp
index 76d24c602..afe2b183d 100644
--- a/Outputs/CRT/Internals/Shaders/IntermediateShader.cpp
+++ b/Outputs/CRT/Internals/Shaders/IntermediateShader.cpp
@@ -24,7 +24,7 @@ std::string IntermediateShader::get_input_name(Input input) {
 		case Input::PhaseTimeAndAmplitude:	return "phaseTimeAndAmplitude";
 
 		// Intended to be unreachable.
-		default: assert(false);
+		default: assert(false);				return "";
 	}
 }
 
diff --git a/Outputs/CRT/Internals/Shaders/OutputShader.cpp b/Outputs/CRT/Internals/Shaders/OutputShader.cpp
index e16684731..58d11cec2 100644
--- a/Outputs/CRT/Internals/Shaders/OutputShader.cpp
+++ b/Outputs/CRT/Internals/Shaders/OutputShader.cpp
@@ -20,7 +20,7 @@ std::string OutputShader::get_input_name(Input input) {
 		case Input::Vertical:	return "vertical";
 
 		// Intended to be unreachable.
-		default: assert(false);
+		default: assert(false); return "";
 	}
 }