diff --git a/modules/modperl/modperl.i b/modules/modperl/modperl.i
index e98d1f0c..87a284b3 100644
--- a/modules/modperl/modperl.i
+++ b/modules/modperl/modperl.i
@@ -41,6 +41,8 @@
 #define stat struct stat
 %}
 
+%apply long { off_t };
+
 %begin %{
 #include "znc/zncconfig.h"
 %}
diff --git a/modules/modpython/modpython.i b/modules/modpython/modpython.i
index c21c27c6..4c574447 100644
--- a/modules/modpython/modpython.i
+++ b/modules/modpython/modpython.i
@@ -36,6 +36,8 @@
 using std::allocator;
 %}
 
+%apply long { off_t };
+
 %begin %{
 #include "znc/zncconfig.h"
 %}