diff --git a/Sources/SwiftEnvironmentMacro/EnvironmentValueMacro.swift b/Sources/SwiftEnvironmentMacro/EnvironmentValueMacro.swift
index 43a6fa1..eb5780a 100644
--- a/Sources/SwiftEnvironmentMacro/EnvironmentValueMacro.swift
+++ b/Sources/SwiftEnvironmentMacro/EnvironmentValueMacro.swift
@@ -26,17 +26,21 @@ public struct EnvironmentValueMacro: MemberMacro {
 }
 
 struct EnvironmentDeclaration: CustomStringConvertible {
+    let isPublic: Bool
     let baseName: String
     let type: String
     
     var derivedName: String {
         "\(baseName.firstCapitalized)SwiftEnvironmentKey"
     }
+    var accessModifier: String {
+        isPublic ? "public " : ""
+    }
     
     var description: String {
         """
         struct \(derivedName): EnvironmentKey {
-            static let defaultValue: \(type) = EnvironmentValues.\(baseName)
+            \(accessModifier)static let defaultValue: \(type) = EnvironmentValues.\(baseName)
         }
         
         var \(baseName): \(type) {
@@ -55,7 +59,8 @@ struct EnvironmentDeclaration: CustomStringConvertible {
 
 private extension ExtensionDeclSyntax {
     var environmentDeclaration: [EnvironmentDeclaration] {
-        memberBlock.members
+        let isPublic = self.modifiers.contains { $0.trimmedDescription == "public" }
+        return memberBlock.members
             .compactMap { $0.decl.as(VariableDeclSyntax.self) }
             .filter { $0.isStatic }
             .compactMap { variable in
@@ -63,7 +68,7 @@ private extension ExtensionDeclSyntax {
                       let type = variable.typeAnnotation ?? variable.initializer else {
                     return nil
                 }
-                return EnvironmentDeclaration(baseName: name, type: type)
+                return EnvironmentDeclaration(isPublic: isPublic, baseName: name, type: type)
                 
             }
     }
diff --git a/Tests/SwiftEnvironmentTests/EnvironmentValueMacroTests.swift b/Tests/SwiftEnvironmentTests/EnvironmentValueMacroTests.swift
index 1a21321..455d6f6 100644
--- a/Tests/SwiftEnvironmentTests/EnvironmentValueMacroTests.swift
+++ b/Tests/SwiftEnvironmentTests/EnvironmentValueMacroTests.swift
@@ -49,18 +49,18 @@ final class EnvironmentValueMacroTests: XCTestCase {
 
 private let oneImplicitArg: String = """
 @EnvironmentValue
-extension EnvironmentValues {
+public extension EnvironmentValues {
     static let dummy = Some.Dependency()
 }
 """
 
 private let oneImplicitArgExpansion: String = """
 
-extension EnvironmentValues {
+public extension EnvironmentValues {
     static let dummy = Some.Dependency()
 
     struct DummySwiftEnvironmentKey: EnvironmentKey {
-        static let defaultValue: Some.Dependency = EnvironmentValues.dummy
+        public static let defaultValue: Some.Dependency = EnvironmentValues.dummy
     }
 
     var dummy: Some.Dependency {
@@ -103,18 +103,18 @@ extension EnvironmentValues {
 
 private let oneArg: String = """
 @EnvironmentValue
-extension EnvironmentValues {
+public extension EnvironmentValues {
     static let dummy: DummyDependency = DummyDependency()
 }
 """
 
 private let oneArgExpansion: String = """
 
-extension EnvironmentValues {
+public extension EnvironmentValues {
     static let dummy: DummyDependency = DummyDependency()
 
     struct DummySwiftEnvironmentKey: EnvironmentKey {
-        static let defaultValue: DummyDependency = EnvironmentValues.dummy
+        public static let defaultValue: DummyDependency = EnvironmentValues.dummy
     }
 
     var dummy: DummyDependency {
@@ -157,7 +157,7 @@ extension EnvironmentValues {
 
 private let multiArgs: String = """
 @EnvironmentValue("one", "two", "three")
-extension EnvironmentValues {
+public extension EnvironmentValues {
     static let one = DummyDependency()
     static let two = DummyDependency()
     static let three = DummyDependency()
@@ -166,13 +166,13 @@ extension EnvironmentValues {
 
 private let multiArgsExpansion: String = """
 
-extension EnvironmentValues {
+public extension EnvironmentValues {
     static let one = DummyDependency()
     static let two = DummyDependency()
     static let three = DummyDependency()
 
     struct OneSwiftEnvironmentKey: EnvironmentKey {
-        static let defaultValue: DummyDependency = EnvironmentValues.one
+        public static let defaultValue: DummyDependency = EnvironmentValues.one
     }
 
     var one: DummyDependency {
@@ -185,7 +185,7 @@ extension EnvironmentValues {
     }
 
     struct TwoSwiftEnvironmentKey: EnvironmentKey {
-        static let defaultValue: DummyDependency = EnvironmentValues.two
+        public static let defaultValue: DummyDependency = EnvironmentValues.two
     }
 
     var two: DummyDependency {
@@ -198,7 +198,7 @@ extension EnvironmentValues {
     }
 
     struct ThreeSwiftEnvironmentKey: EnvironmentKey {
-        static let defaultValue: DummyDependency = EnvironmentValues.three
+        public static let defaultValue: DummyDependency = EnvironmentValues.three
     }
 
     var three: DummyDependency {