diff --git a/docs/versionhistory.rst b/docs/versionhistory.rst
index c8566ca..89c53e7 100644
--- a/docs/versionhistory.rst
+++ b/docs/versionhistory.rst
@@ -5,6 +5,10 @@ Version history
 
 This library adheres to `Semantic Versioning <http://semver.org/>`_.
 
+**UNRELEASED**
+
+- Fixed compilation of C extension failing on GCC 14
+
 **5.6.3** (2024-04-11)
 
 - Fixed decoding of epoch-based dates being affected by the local time zone in the C extension
diff --git a/source/decoder.c b/source/decoder.c
index 6fd74ce..bd7fa47 100644
--- a/source/decoder.c
+++ b/source/decoder.c
@@ -348,7 +348,7 @@ _CBORDecoder_get_immutable(CBORDecoderObject *self, void *closure)
 
 // Utility functions /////////////////////////////////////////////////////////
 
-static int
+static void
 raise_from(PyObject *new_exc_type, const char *message) {
     // This requires the error indicator to be set
     PyObject *cause;