diff --git a/src/arduino.c b/src/arduino.c
index 73a0bd70..ae75be09 100644
--- a/src/arduino.c
+++ b/src/arduino.c
@@ -45,7 +45,7 @@ static int arduino_parseextparms(const PROGRAMMER *pgm, const LISTID extparms) {
   for (LNODEID ln = lfirst(extparms); ln; ln = lnext(ln)) {
     extended_param = ldata(ln);
 
-    if (sscanf(extended_param, "attempts=%2d", &attempts) == 1) {
+    if (sscanf(extended_param, "attempts=%i", &attempts) == 1) {
       PDATA(pgm)->retry_attempts = attempts;
       pmsg_info("setting number of retry attempts to %d\n", attempts);
       continue;
diff --git a/src/stk500.c b/src/stk500.c
index a7c5657e..47418ec4 100644
--- a/src/stk500.c
+++ b/src/stk500.c
@@ -650,7 +650,7 @@ static int stk500_parseextparms(const PROGRAMMER *pgm, const LISTID extparms)
    for (ln = lfirst(extparms); ln; ln = lnext(ln)) {
      extended_param = ldata(ln);
 
-    if (sscanf(extended_param, "attempts=%2d", &attempts) == 1) {
+    if (sscanf(extended_param, "attempts=%i", &attempts) == 1) {
       PDATA(pgm)->retry_attempts = attempts;
       pmsg_info("setting number of retry attempts to %d\n", attempts);
       continue;