diff --git a/src/xsvf/xsvf.c b/src/xsvf/xsvf.c
index bec32f21e..53779bb1c 100644
--- a/src/xsvf/xsvf.c
+++ b/src/xsvf/xsvf.c
@@ -27,11 +27,11 @@
 
 /* The specification for SVF is available here:
  * http://www.asset-intertech.com/support/svf.pdf
- * Below, this document is refered to as the "SVF spec".
+ * Below, this document is referred to as the "SVF spec".
  *
  * The specification for XSVF is available here:
  * http://www.xilinx.com/support/documentation/application_notes/xapp503.pdf
- * Below, this document is refered to as the "XSVF spec".
+ * Below, this document is referred to as the "XSVF spec".
  */
 
 #ifdef HAVE_CONFIG_H
@@ -230,7 +230,7 @@ COMMAND_HANDLER(handle_xsvf_command)
 	unsigned pathlen = 0;
 
 	/* a flag telling whether to clock TCK during waits,
-	 * or simply sleep, controled by virt2
+	 * or simply sleep, controlled by virt2
 	 */
 	int runtest_requires_tck = 0;
 
@@ -456,7 +456,7 @@ COMMAND_HANDLER(handle_xsvf_command)
 
 					if (attempt > 0) {
 						/* perform the XC9500 exception handling sequence shown in xapp067.pdf and
-						 * illustrated in psuedo code at end of this file.  We start from state
+						 * illustrated in pseudo code at end of this file.  We start from state
 						 * DRPAUSE:
 						 * go to Exit2-DR
 						 * go to Shift-DR