diff --git a/pkg/functions/function.go b/pkg/functions/function.go
index af70f8b27c..a3cf6dc72c 100644
--- a/pkg/functions/function.go
+++ b/pkg/functions/function.go
@@ -150,12 +150,14 @@ type BuildSpec struct {
 	Image string `yaml:"-"`
 
 	// Mounts used in build phase. This is useful in particular for paketo bindings.
-	Mounts []MountSpec `yaml:"mounts,omitempty"`
+	Mounts []MountSpec `yaml:"volumes,omitempty"`
 }
 
 type MountSpec struct {
-	Source      string `yaml:"source"`
-	Destination string `yaml:"destination"`
+	// Path on the local machine
+	Source string `yaml:"hostPath"`
+	// Path in the build container
+	Destination string `yaml:"path"`
 }
 
 // RunSpec
diff --git a/schema/func_yaml-schema.json b/schema/func_yaml-schema.json
index 74504ec390..ff0fe8d00f 100644
--- a/schema/func_yaml-schema.json
+++ b/schema/func_yaml-schema.json
@@ -49,7 +49,7 @@
 					"type": "string",
 					"description": "RemoteStorageClass specifies the storage class to use for the volume used\non-cluster during when built remotely."
 				},
-				"mounts": {
+				"volumes": {
 					"items": {
 						"$schema": "http://json-schema.org/draft-04/schema#",
 						"$ref": "#/definitions/MountSpec"
@@ -279,15 +279,17 @@
 		},
 		"MountSpec": {
 			"required": [
-				"source",
-				"destination"
+				"hostPath",
+				"path"
 			],
 			"properties": {
-				"source": {
-					"type": "string"
+				"hostPath": {
+					"type": "string",
+					"description": "Path on the local machine"
 				},
-				"destination": {
-					"type": "string"
+				"path": {
+					"type": "string",
+					"description": "Path in the build container"
 				}
 			},
 			"additionalProperties": false,