diff --git a/action.yml b/action.yml
index 8a52c54..9efcb4a 100644
--- a/action.yml
+++ b/action.yml
@@ -17,6 +17,9 @@ inputs:
     description: 'Comma-separated list of additional targets to install.'
   profile:
     description: 'Profile to install. Defaults to "minimal".'
+  inherit-toolchain:
+    description: 'Inherit all toolchain settings from the rust-toolchain.toml file.'
+    default: false
 outputs:
   cache-key:
     description: 'The generated cache key used.'
diff --git a/src/rust.ts b/src/rust.ts
index a2a2459..6aac44f 100644
--- a/src/rust.ts
+++ b/src/rust.ts
@@ -69,10 +69,18 @@ export function parseConfig(configPath: string): Partial<Toolchain> {
 
 	const config = TOML.parse(contents) as unknown as ToolchainConfig;
 
-	if (config.toolchain.channel) {
-		core.debug('Found channel in [toolchain] section');
+	if (config.toolchain) {
+		if (core.getBooleanInput('inherit-toolchain')) {
+			core.debug('Inheriting entire [toolchain] section');
 
-		return { channel: config.toolchain.channel };
+			return { ...config.toolchain };
+		}
+
+		if (config.toolchain.channel) {
+			core.debug('Found channel in [toolchain] section');
+
+			return { channel: config.toolchain.channel };
+		}
 	}
 
 	core.debug('No channel found in [toolchain] section');