diff --git a/src/hardware/r_opengl/r_opengl.c b/src/hardware/r_opengl/r_opengl.c
index 124895d8..f0602063 100644
--- a/src/hardware/r_opengl/r_opengl.c
+++ b/src/hardware/r_opengl/r_opengl.c
@@ -1767,7 +1767,7 @@ static void load_shaders(FSurfaceInfo *Surface, GLRGBAFloat *poly, GLRGBAFloat *
 				UNIFORM_1(shader->uniforms[gluniform_lighting], Surface->LightInfo.light_level, pglUniform1f);
 				UNIFORM_1(shader->uniforms[gluniform_fade_start], Surface->LightInfo.fade_start, pglUniform1f);
 				UNIFORM_1(shader->uniforms[gluniform_fade_end], Surface->LightInfo.fade_end, pglUniform1f);
-				UNIFORM_1(shader->uniforms[gluniform_leveltime], (float)leveltime, pglUniform1f);
+				UNIFORM_1(shader->uniforms[gluniform_leveltime], ((float)leveltime) / TICRATE, pglUniform1f);
 
 				#undef UNIFORM_1
 				#undef UNIFORM_2