diff --git a/Outputs/CRT/CRT.cpp b/Outputs/CRT/CRT.cpp
index 74c50d7e4..1d62830e9 100644
--- a/Outputs/CRT/CRT.cpp
+++ b/Outputs/CRT/CRT.cpp
@@ -106,7 +106,7 @@ Flywheel::SyncEvent CRT::get_next_horizontal_sync_event(bool hsync_is_requested,
 #define source_output_position_y(v)	(*(uint16_t *)&next_run[SourceVertexSize*v + SourceVertexOffsetOfOutputPosition + 2])
 #define source_phase(v)				next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseAndAmplitude + 0]
 #define source_amplitude(v)			next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseAndAmplitude + 1]
-#define source_phase_time(v)		(*(uint16_t *)&next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseTime])
+#define source_phase_time(v)		next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseTime]
 
 void CRT::advance_cycles(unsigned int number_of_cycles, unsigned int source_divider, bool hsync_requested, bool vsync_requested, const bool vsync_charging, const Scan::Type type, uint16_t tex_x, uint16_t tex_y)
 {
diff --git a/Outputs/CRT/Internals/CRTOpenGL.cpp b/Outputs/CRT/Internals/CRTOpenGL.cpp
index a7691a8ec..f89401b55 100644
--- a/Outputs/CRT/Internals/CRTOpenGL.cpp
+++ b/Outputs/CRT/Internals/CRTOpenGL.cpp
@@ -410,7 +410,7 @@ void OpenGLOutputBuilder::prepare_source_vertex_array()
 		glVertexAttribPointer((GLuint)inputPositionAttribute,		2, GL_UNSIGNED_SHORT,	GL_FALSE,	vertexStride, (void *)SourceVertexOffsetOfInputPosition);
 		glVertexAttribPointer((GLuint)outputPositionAttribute,		2, GL_UNSIGNED_SHORT,	GL_FALSE,	vertexStride, (void *)SourceVertexOffsetOfOutputPosition);
 		glVertexAttribPointer((GLuint)phaseAndAmplitudeAttribute,	2, GL_UNSIGNED_BYTE,	GL_TRUE,	vertexStride, (void *)SourceVertexOffsetOfPhaseAndAmplitude);
-		glVertexAttribPointer((GLuint)phaseTimeAttribute,			2, GL_UNSIGNED_SHORT,	GL_FALSE,	vertexStride, (void *)SourceVertexOffsetOfPhaseTime);
+		glVertexAttribPointer((GLuint)phaseTimeAttribute,			1, GL_UNSIGNED_BYTE,	GL_FALSE,	vertexStride, (void *)SourceVertexOffsetOfPhaseTime);
 	}
 }