diff --git a/loader/full-example.yml b/loader/full-example.yml
index 9614fd2f..08467227 100644
--- a/loader/full-example.yml
+++ b/loader/full-example.yml
@@ -15,6 +15,8 @@ services:
         - foo
         - bar
       labels: [FOO=BAR]
+      additional_contexts:
+        foo: /bar
       secrets:
         - secret1
         - source: secret2
diff --git a/loader/full-struct_test.go b/loader/full-struct_test.go
index add25008..8e4aa1e7 100644
--- a/loader/full-struct_test.go
+++ b/loader/full-struct_test.go
@@ -50,14 +50,15 @@ func services(workingDir, homeDir string) []types.ServiceConfig {
 			Name: "foo",
 
 			Build: &types.BuildConfig{
-				Context:    "./dir",
-				Dockerfile: "Dockerfile",
-				Args:       map[string]*string{"foo": strPtr("bar")},
-				SSH:        []types.SSHKey{{ID: "default", Path: ""}},
-				Target:     "foo",
-				Network:    "foo",
-				CacheFrom:  []string{"foo", "bar"},
-				Labels:     map[string]string{"FOO": "BAR"},
+				Context:            "./dir",
+				Dockerfile:         "Dockerfile",
+				Args:               map[string]*string{"foo": strPtr("bar")},
+				SSH:                []types.SSHKey{{ID: "default", Path: ""}},
+				Target:             "foo",
+				Network:            "foo",
+				CacheFrom:          []string{"foo", "bar"},
+				AdditionalContexts: map[string]*string{"foo": strPtr("/bar")},
+				Labels:             map[string]string{"FOO": "BAR"},
 				Secrets: []types.ServiceSecretConfig{
 					{
 						Source: "secret1",
@@ -597,6 +598,8 @@ services:
       cache_from:
         - foo
         - bar
+      additional_contexts:
+        foo: /bar
       network: foo
       target: foo
       secrets:
@@ -1137,6 +1140,9 @@ func fullExampleJSON(workingDir, homeDir string) string {
           "foo",
           "bar"
         ],
+        "additional_contexts": {
+          "foo": "/bar"
+        },
         "network": "foo",
         "target": "foo",
         "secrets": [
diff --git a/schema/compose-spec.json b/schema/compose-spec.json
index d8cc36a6..78d6979f 100644
--- a/schema/compose-spec.json
+++ b/schema/compose-spec.json
@@ -97,6 +97,7 @@
                 "cache_from": {"type": "array", "items": {"type": "string"}},
                 "cache_to": {"type": "array", "items": {"type": "string"}},
                 "no_cache": {"type": "boolean"},
+                "additional_contexts": {"$ref": "#/definitions/list_or_dict"},
                 "network": {"type": "string"},
                 "pull": {"type": "boolean"},
                 "target": {"type": "string"},
diff --git a/types/types.go b/types/types.go
index fa1a1384..f3363c5c 100644
--- a/types/types.go
+++ b/types/types.go
@@ -294,23 +294,24 @@ func (s set) toSlice() []string {
 
 // BuildConfig is a type for build
 type BuildConfig struct {
-	Context    string                `yaml:",omitempty" json:"context,omitempty"`
-	Dockerfile string                `yaml:",omitempty" json:"dockerfile,omitempty"`
-	Args       MappingWithEquals     `yaml:",omitempty" json:"args,omitempty"`
-	SSH        SSHConfig             `yaml:"ssh,omitempty" json:"ssh,omitempty"`
-	Labels     Labels                `yaml:",omitempty" json:"labels,omitempty"`
-	CacheFrom  StringList            `mapstructure:"cache_from" yaml:"cache_from,omitempty" json:"cache_from,omitempty"`
-	CacheTo    StringList            `mapstructure:"cache_to" yaml:"cache_to,omitempty" json:"cache_to,omitempty"`
-	NoCache    bool                  `mapstructure:"no_cache" yaml:"no_cache,omitempty" json:"no_cache,omitempty"`
-	Pull       bool                  `mapstructure:"pull" yaml:"pull,omitempty" json:"pull,omitempty"`
-	ExtraHosts HostsList             `mapstructure:"extra_hosts" yaml:"extra_hosts,omitempty" json:"extra_hosts,omitempty"`
-	Isolation  string                `yaml:",omitempty" json:"isolation,omitempty"`
-	Network    string                `yaml:",omitempty" json:"network,omitempty"`
-	Target     string                `yaml:",omitempty" json:"target,omitempty"`
-	Secrets    []ServiceSecretConfig `yaml:",omitempty" json:"secrets,omitempty"`
-	Tags       StringList            `mapstructure:"tags" yaml:"tags,omitempty" json:"tags,omitempty"`
-	Platforms  StringList            `mapstructure:"platforms" yaml:"platforms,omitempty" json:"platforms,omitempty"`
-	Privileged bool                  `yaml:",omitempty" json:"privileged,omitempty"`
+	Context            string                `yaml:",omitempty" json:"context,omitempty"`
+	Dockerfile         string                `yaml:",omitempty" json:"dockerfile,omitempty"`
+	Args               MappingWithEquals     `yaml:",omitempty" json:"args,omitempty"`
+	SSH                SSHConfig             `yaml:"ssh,omitempty" json:"ssh,omitempty"`
+	Labels             Labels                `yaml:",omitempty" json:"labels,omitempty"`
+	CacheFrom          StringList            `mapstructure:"cache_from" yaml:"cache_from,omitempty" json:"cache_from,omitempty"`
+	CacheTo            StringList            `mapstructure:"cache_to" yaml:"cache_to,omitempty" json:"cache_to,omitempty"`
+	NoCache            bool                  `mapstructure:"no_cache" yaml:"no_cache,omitempty" json:"no_cache,omitempty"`
+	AdditionalContexts MappingWithEquals     `mapstructure:"additional_contexts" yaml:"additional_contexts,omitempty" json:"additional_contexts,omitempty"`
+	Pull               bool                  `mapstructure:"pull" yaml:"pull,omitempty" json:"pull,omitempty"`
+	ExtraHosts         HostsList             `mapstructure:"extra_hosts" yaml:"extra_hosts,omitempty" json:"extra_hosts,omitempty"`
+	Isolation          string                `yaml:",omitempty" json:"isolation,omitempty"`
+	Network            string                `yaml:",omitempty" json:"network,omitempty"`
+	Target             string                `yaml:",omitempty" json:"target,omitempty"`
+	Secrets            []ServiceSecretConfig `yaml:",omitempty" json:"secrets,omitempty"`
+	Tags               StringList            `mapstructure:"tags" yaml:"tags,omitempty" json:"tags,omitempty"`
+	Platforms          StringList            `mapstructure:"platforms" yaml:"platforms,omitempty" json:"platforms,omitempty"`
+	Privileged         bool                  `yaml:",omitempty" json:"privileged,omitempty"`
 
 	Extensions map[string]interface{} `yaml:",inline" json:"-"`
 }