diff --git a/src/if_py_both.h b/src/if_py_both.h
index b80a3e2..2850540 100644
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -734,7 +734,7 @@
 
     if (di == NULL)
     {
-	PyErr_SetString(PyExc_KeyError, _("no such key in dictionary"));
+	PyErr_SetObject(PyExc_KeyError, keyObject);
 	return NULL;
     }
 
@@ -767,7 +767,7 @@
 	if (di == NULL)
 	{
 	    DICTKEY_UNREF
-	    PyErr_SetString(PyExc_IndexError, _("no such key in dictionary"));
+	    PyErr_SetObject(PyExc_KeyError, keyObject);
 	    return -1;
 	}
 	hi = hash_find(&d->dv_hashtab, di->di_key);
@@ -1353,7 +1353,7 @@
 
     if (flags == 0)
     {
-	PyErr_SetString(PyExc_KeyError, "Option does not exist in given scope");
+	PyErr_SetObject(PyExc_KeyError, keyObject);
 	return NULL;
     }
 
@@ -1447,7 +1447,7 @@
 
     if (flags == 0)
     {
-	PyErr_SetString(PyExc_KeyError, "Option does not exist in given scope");
+	PyErr_SetObject(PyExc_KeyError, keyObject);
 	return -1;
     }
 
@@ -3145,7 +3145,7 @@
 	return BufferNew(b);
     else
     {
-	PyErr_SetString(PyExc_KeyError, _("no such buffer"));
+	PyErr_SetObject(PyExc_KeyError, keyObject);
 	return NULL;
     }
 }
diff --git a/src/if_python.c b/src/if_python.c
index b756c3c..edbba21 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -155,6 +155,7 @@
 # define PyErr_Occurred dll_PyErr_Occurred
 # define PyErr_SetNone dll_PyErr_SetNone
 # define PyErr_SetString dll_PyErr_SetString
+# define PyErr_SetObject dll_PyErr_SetObject
 # define PyEval_InitThreads dll_PyEval_InitThreads
 # define PyEval_RestoreThread dll_PyEval_RestoreThread
 # define PyEval_SaveThread dll_PyEval_SaveThread
@@ -260,6 +261,7 @@
 static PyObject*(*dll_PyErr_Occurred)(void);
 static void(*dll_PyErr_SetNone)(PyObject *);
 static void(*dll_PyErr_SetString)(PyObject *, const char *);
+static void(*dll_PyErr_SetObject)(PyObject *, PyObject *);
 static void(*dll_PyEval_InitThreads)(void);
 static void(*dll_PyEval_RestoreThread)(PyThreadState *);
 static PyThreadState*(*dll_PyEval_SaveThread)(void);
@@ -393,6 +395,7 @@
     {"PyErr_Occurred", (PYTHON_PROC*)&dll_PyErr_Occurred},
     {"PyErr_SetNone", (PYTHON_PROC*)&dll_PyErr_SetNone},
     {"PyErr_SetString", (PYTHON_PROC*)&dll_PyErr_SetString},
+    {"PyErr_SetObject", (PYTHON_PROC*)&dll_PyErr_SetObject},
     {"PyEval_InitThreads", (PYTHON_PROC*)&dll_PyEval_InitThreads},
     {"PyEval_RestoreThread", (PYTHON_PROC*)&dll_PyEval_RestoreThread},
     {"PyEval_SaveThread", (PYTHON_PROC*)&dll_PyEval_SaveThread},
diff --git a/src/if_python3.c b/src/if_python3.c
index f32aca4..8acab9d 100644
--- a/src/if_python3.c
+++ b/src/if_python3.c
@@ -128,6 +128,7 @@
 # define PyErr_Occurred py3_PyErr_Occurred
 # define PyErr_SetNone py3_PyErr_SetNone
 # define PyErr_SetString py3_PyErr_SetString
+# define PyErr_SetObject py3_PyErr_SetObject
 # define PyEval_InitThreads py3_PyEval_InitThreads
 # define PyEval_RestoreThread py3_PyEval_RestoreThread
 # define PyEval_SaveThread py3_PyEval_SaveThread
@@ -250,6 +251,7 @@
 static PyObject* (*py3_PyErr_NoMemory)(void);
 static void (*py3_Py_Finalize)(void);
 static void (*py3_PyErr_SetString)(PyObject *, const char *);
+static void (*py3_PyErr_SetObject)(PyObject *, PyObject *);
 static int (*py3_PyRun_SimpleString)(char *);
 static PyObject* (*py3_PyRun_String)(char *, int, PyObject *, PyObject *);
 static PyObject* (*py3_PyList_GetItem)(PyObject *, Py_ssize_t);
@@ -379,6 +381,7 @@
     {"PyErr_NoMemory", (PYTHON_PROC*)&py3_PyErr_NoMemory},
     {"Py_Finalize", (PYTHON_PROC*)&py3_Py_Finalize},
     {"PyErr_SetString", (PYTHON_PROC*)&py3_PyErr_SetString},
+    {"PyErr_SetObject", (PYTHON_PROC*)&py3_PyErr_SetObject},
     {"PyRun_SimpleString", (PYTHON_PROC*)&py3_PyRun_SimpleString},
     {"PyRun_String", (PYTHON_PROC*)&py3_PyRun_String},
     {"PyList_GetItem", (PYTHON_PROC*)&py3_PyList_GetItem},
diff --git a/src/version.c b/src/version.c
index 6c41c46..eb7d0db 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    950,
+/**/
     949,
 /**/
     948,