diff --git a/lib/parameter.c b/lib/parameter.c
index a21b8fa..00e9a9f 100644
--- a/lib/parameter.c
+++ b/lib/parameter.c
@@ -343,10 +343,10 @@
 		ret = strtobool(val, pi->value);
 		break;
 	case PARAM_TYPE_INT32:
-		*(uint32_t *)pi->value = simple_strtol(val, NULL, 0);
+		*(int32_t *)pi->value = simple_strtol(val, NULL, 0);
 		break;
 	case PARAM_TYPE_UINT32:
-		*(int32_t *)pi->value = simple_strtoul(val, NULL, 0);
+		*(uint32_t *)pi->value = simple_strtoul(val, NULL, 0);
 		break;
 	case PARAM_TYPE_INT64:
 		*(int64_t *)pi->value = simple_strtoll(val, NULL, 0);