diff --git a/renderdoc/data/glsl/texdisplay.frag b/renderdoc/data/glsl/texdisplay.frag
index 98d71c700..8fba75ce1 100644
--- a/renderdoc/data/glsl/texdisplay.frag
+++ b/renderdoc/data/glsl/texdisplay.frag
@@ -144,7 +144,7 @@ void main(void)
 	else
 	{
 		// if only one channel is selected
-		if(dot(Channels, 1.0f.xxxx) == 1.0f.xxxx)
+		if(dot(Channels, 1.0f.xxxx) == 1.0f)
 		{
 			// if it's alpha, just move it into rgb
 			// otherwise, select the channel that's on and replicate it across all channels