diff --git a/docs/examples/.checksrc b/docs/examples/.checksrc
index e35dccc726..c47627467f 100644
--- a/docs/examples/.checksrc
+++ b/docs/examples/.checksrc
@@ -2,6 +2,8 @@
 #
 # SPDX-License-Identifier: curl
 
+allowfunc atoi
+allowfunc atol
 allowfunc fclose
 allowfunc fdopen
 allowfunc fopen
diff --git a/scripts/checksrc.pl b/scripts/checksrc.pl
index 5dcad3e315..caf60e1c4d 100755
--- a/scripts/checksrc.pl
+++ b/scripts/checksrc.pl
@@ -72,6 +72,8 @@ my %banfunc = (
     "strtok_r" => 1,
     "strtol" => 1,
     "strtoul" => 1,
+    "atoi" => 1,
+    "atol" => 1,
     "_mbscat" => 1,
     "_mbsncat" => 1,
     "_tcscat" => 1,
diff --git a/src/.checksrc b/src/.checksrc
index 37b81cfe2f..bc97c06028 100644
--- a/src/.checksrc
+++ b/src/.checksrc
@@ -3,4 +3,3 @@
 # SPDX-License-Identifier: curl
 
 enable STDERR
-banfunc atoi