diff --git a/src/ckpool.c b/src/ckpool.c
index 5a15b590..bef14365 100644
--- a/src/ckpool.c
+++ b/src/ckpool.c
@@ -810,6 +810,7 @@ static void launch_process(proc_instance_t *pi)
 		struct sigaction handler;
 		int ret;
 
+		json_set_alloc_funcs(json_ckalloc, free);
 		launch_logger(pi);
 		handler.sa_handler = &childsighandler;
 		handler.sa_flags = 0;
@@ -1260,6 +1261,7 @@ int main(int argc, char **argv)
 
 	/* Make significant floating point errors fatal to avoid subtle bugs being missed */
 	feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW );
+	json_set_alloc_funcs(json_ckalloc, free);
 
 	global_ckp = &ckp;
 	memset(&ckp, 0, sizeof(ckp));
diff --git a/src/libckpool.c b/src/libckpool.c
index 12db182f..5d992e2e 100644
--- a/src/libckpool.c
+++ b/src/libckpool.c
@@ -1270,6 +1270,11 @@ void *_ckalloc(size_t len, const char *file, const char *func, const int line)
 	return ptr;
 }
 
+void *json_ckalloc(size_t size)
+{
+	return _ckalloc(size, __FILE__, __func__, __LINE__);
+}
+
 void *_ckzalloc(size_t len, const char *file, const char *func, const int line)
 {
 	int backoff = 1;
diff --git a/src/libckpool.h b/src/libckpool.h
index ac865046..a52628fe 100644
--- a/src/libckpool.h
+++ b/src/libckpool.h
@@ -489,6 +489,7 @@ void align_len(size_t *len);
 void realloc_strcat(char **ptr, const char *s);
 void trail_slash(char **buf);
 void *_ckalloc(size_t len, const char *file, const char *func, const int line);
+void *json_ckalloc(size_t size);
 void *_ckzalloc(size_t len, const char *file, const char *func, const int line);
 void _dealloc(void **ptr);
 extern const int hex2bin_tbl[];