diff --git a/sys/src/9/pc/cputemp.c b/sys/src/9/pc/cputemp.c
--- a/sys/src/9/pc/cputemp.c
+++ b/sys/src/9/pc/cputemp.c
@@ -148,7 +148,7 @@
 		t = i/8;
 		r = ".0";
 		if(i % 8 >= 4)
-			r = "0.5";
+			r = ".5";
 		/*
 		 * only one value per nb; repeat per core
 		 */