diff --git a/libclc/ptx-nvidiacl/libspirv/assert/__assert_fail.cl b/libclc/ptx-nvidiacl/libspirv/assert/__assert_fail.cl
index 5787cdb4b02be..8a821ad16bf97 100644
--- a/libclc/ptx-nvidiacl/libspirv/assert/__assert_fail.cl
+++ b/libclc/ptx-nvidiacl/libspirv/assert/__assert_fail.cl
@@ -1,14 +1,14 @@
 #include <spirv/spirv.h>
 
 void __assertfail(const char *__message, const char *__file, unsigned __line,
-                  const char *__function);
+                  const char *__function, size_t __charSize);
 
 _CLC_DECL void __assert_fail(const char *expr, const char *file,
                              unsigned int line, const char *func) {
-  __assertfail(expr, file, line, func);
+  __assertfail(expr, file, line, func, 1);
 }
 
 _CLC_DECL void _wassert(const char *_Message, const char *_File,
                         unsigned _Line) {
-  __assertfail(_Message, _File, _Line, 0);
+  __assertfail(_Message, _File, _Line, 0, 1);
 }