diff --git a/vpi/sys_display.c b/vpi/sys_display.c
index 068bddb60..cad83ad45 100644
--- a/vpi/sys_display.c
+++ b/vpi/sys_display.c
@@ -868,7 +868,7 @@ static unsigned int get_numeric(char **rtn, const struct strobe_cb_info *info,
   switch(info->default_format){
     case vpiDecStrVal:
       size = vpi_get_dec_size(item);
-	/* -1 can be represented as a one bit signed value. This returns	
+	/* -1 can be represented as a one bit signed value. This returns
 	 * a size of 1 which is too small for the -1 string value so make
 	 * the string width the minimum display width. */
       min = strlen(val.value.str);
diff --git a/vpi/sys_scanf.c b/vpi/sys_scanf.c
index 3dd809406..8379da19f 100644
--- a/vpi/sys_scanf.c
+++ b/vpi/sys_scanf.c
@@ -322,7 +322,7 @@ static int scan_format_float_time(vpiHandle callh, vpiHandle argv,
 
 /*
  * Base routine for getting binary, octal and hex values.
- * 
+ *
  * Return: 1 for a match, 0 for no match/variable and -1 for a
  *         suppressed match. No variable is fatal.
  */
@@ -412,7 +412,7 @@ static int scan_format_binary(vpiHandle callh, vpiHandle argv,
 
 /*
  * Routine to return a character value (implements %c).
- * 
+ *
  * Return: 1 for a match, 0 for no match/variable and -1 for a
  *         suppressed match. No variable is fatal.
  */
@@ -458,7 +458,7 @@ static int scan_format_char(vpiHandle callh, vpiHandle argv,
 
 /*
  * Routine to return a decimal value (implements %d).
- * 
+ *
  * Return: 1 for a match, 0 for no match/variable and -1 for a
  *         suppressed match. No variable is fatal.
  */
@@ -642,7 +642,7 @@ static int scan_format_module_path(vpiHandle callh, vpiHandle argv,
 
 /*
  * Routine to return a string value (implements %s).
- * 
+ *
  * Return: 1 for a match, 0 for no match/variable and -1 for a
  *         suppressed match. No variable is fatal.
  */
diff --git a/vvp/delay.cc b/vvp/delay.cc
index e5b16f362..3ed6b9f74 100644
--- a/vvp/delay.cc
+++ b/vvp/delay.cc
@@ -753,7 +753,7 @@ static vpiHandle modpath_src_get_handle(int code, vpiHandle ref)
 	    // the vpi_iterate and vpi_scan functions. Continue to allow
 	    // them to be obtained here for backwards compatibility with
 	    // older versions of Icarus Verilog.
-	    
+
 	  case vpiModPathIn:
 	    return vpi_handle(&rfp->path_term_in);