diff --git a/lib/arm/truncdfsf2vfp.S b/lib/arm/truncdfsf2vfp.S
index 55bf324ccc..0508191a97 100644
--- a/lib/arm/truncdfsf2vfp.S
+++ b/lib/arm/truncdfsf2vfp.S
@@ -14,7 +14,7 @@
 //
 // Converts double precision float to signle precision result.
 // Uses Darwin calling convention where a double precision parameter is 
-// passed in a R0/R1 pair and a signle precision result is returned in R0.
+// passed in a R0/R1 pair and a single precision result is returned in R0.
 //
 	.syntax unified
 	.align 2