diff --git a/gen_wrap.py b/gen_wrap.py
index e3ffb0a20d208a2168b523ef59cdc21e4df03bf6..a9b43c8c62e52a896b530fe775e71aa60a3230d6 100644
--- a/gen_wrap.py
+++ b/gen_wrap.py
@@ -507,7 +507,13 @@ def get_callback(cb_name, cb):
               %(body)s
               py::object retval = py_cb(%(passed_args)s);
               if (retval.ptr() == Py_None)
-                return isl_stat_ok;
+              {
+                #if !defined(ISLPY_ISL_VERSION) || (ISLPY_ISL_VERSION >= 15)
+                  return isl_stat_ok;
+                #else
+                  return 0;
+                #endif
+              }
               else
                 return py::extract<%(ret_type)s>(retval);
             }
@@ -516,7 +522,11 @@ def get_callback(cb_name, cb):
               std::cout << "[islpy warning] A Python exception occurred in "
                 "a call back function, ignoring:" << std::endl;
               PyErr_Print();
-              return isl_stat_error;
+              #if !defined(ISLPY_ISL_VERSION) || (ISLPY_ISL_VERSION >= 15)
+                return isl_stat_error;
+              #else
+                return -1;
+              #endif
             }
             catch (std::exception &e)
             {
@@ -524,7 +534,11 @@ def get_callback(cb_name, cb):
                 "a Python callback query:" << std::endl
                 << e.what() << std::endl;
               std::cout << "[islpy] Aborting now." << std::endl;
-              return isl_stat_error;
+              #if !defined(ISLPY_ISL_VERSION) || (ISLPY_ISL_VERSION >= 15)
+                return isl_stat_error;
+              #else
+                return -1;
+              #endif
             }
         }
         """ % dict(
@@ -826,7 +840,11 @@ def write_wrapper(outf, meth):
 
     if meth.return_base_type in ["int", "isl_stat"] and not meth.return_ptr:
         body.append("""
-            if (result == isl_stat_error)
+            #if !defined(ISLPY_ISL_VERSION) || (ISLPY_ISL_VERSION >= 15)
+              if (result == isl_stat_error)
+            #else
+              if (result == -1)
+            #endif
             {
               throw isl::error("call to isl_%(cls)s_%(name)s failed");
             }""" % {"cls": meth.cls, "name": meth.name})
diff --git a/isl b/isl
index 34a816af373253fca8dfd0f69a5424f02895af64..3916fbc5f0bab03d03ab886dde3fa4328a113af6 160000
--- a/isl
+++ b/isl
@@ -1 +1 @@
-Subproject commit 34a816af373253fca8dfd0f69a5424f02895af64
+Subproject commit 3916fbc5f0bab03d03ab886dde3fa4328a113af6
diff --git a/src/wrapper/wrap_isl.cpp b/src/wrapper/wrap_isl.cpp
index 483ea9f01e39596bf23c8fecb1d939b479f7b201..fbea3eee2202bd63b8f0f56d343e8b58ed3d1d58 100644
--- a/src/wrapper/wrap_isl.cpp
+++ b/src/wrapper/wrap_isl.cpp
@@ -54,6 +54,7 @@ BOOST_PYTHON_MODULE(_isl)
   }
   */
 
+#if !defined(ISLPY_ISL_VERSION) || (ISLPY_ISL_VERSION >= 15)
   py::enum_<isl_error>("error")
     .ENUM_VALUE(isl_error_, none)
     .ENUM_VALUE(isl_error_, abort)
@@ -67,6 +68,7 @@ BOOST_PYTHON_MODULE(_isl)
     .ENUM_VALUE(isl_stat_, error)
     .ENUM_VALUE(isl_stat_, ok)
     ;
+#endif
 
   py::enum_<isl_dim_type>("dim_type")
     .ENUM_VALUE(isl_dim_, cst)
diff --git a/src/wrapper/wrap_isl.hpp b/src/wrapper/wrap_isl.hpp
index 47e244ac68bc4149254f1bbfa28f3bd8f2a839a9..e852589c459710c0dda880730e1d0787a78f4df0 100644
--- a/src/wrapper/wrap_isl.hpp
+++ b/src/wrapper/wrap_isl.hpp
@@ -16,7 +16,9 @@
 #include <isl/vertices.h>
 #include <isl/band.h>
 #include <isl/schedule.h>
+#if !defined(ISLPY_ISL_VERSION) || (ISLPY_ISL_VERSION >= 15)
 #include <isl/schedule_node.h>
+#endif
 #include <isl/flow.h>
 #include <isl/ast.h>
 #include <isl/ast_build.h>