diff --git a/src/cmph_structs.c b/src/cmph_structs.c
index 553db3d..30790bf 100644
--- a/src/cmph_structs.c
+++ b/src/cmph_structs.c
@@ -8,12 +8,13 @@
 cmph_config_t *__config_new(cmph_io_adapter_t *key_source)
 {
 	cmph_config_t *mph = (cmph_config_t *)malloc(sizeof(cmph_config_t));
+	memset(mph, 0, sizeof(cmph_config_t));
 	DEBUGP("Creating mph with algorithm %s\n", cmph_names[algo]);
 	if (mph == NULL) return NULL;
 	mph->key_source = key_source;
 	mph->verbosity = 0;
 	mph->data = NULL;
-	float c = 0;
+	mph->c = 0;
 	return mph;
 }