diff --git a/src/tscache.ts b/src/tscache.ts
index 14756af..617f9ad 100644
--- a/src/tscache.ts
+++ b/src/tscache.ts
@@ -213,7 +213,8 @@ export class TsCache
 	public getCompiled(id: string, snapshot: tsTypes.IScriptSnapshot, transform: () => ICode | undefined): ICode | undefined
 	{
 		this.context.info(`${blue("transpiling")} '${id}'`);
-		return this.getCached(this.codeCache, id, snapshot, false, transform);
+		// if !isolatedModules, compiled JS code can change if its imports do (e.g. enums). also, declarations can change based on imports as well
+		return this.getCached(this.codeCache, id, snapshot, Boolean(!this.options.isolatedModules || this.options.declaration), transform);
 	}
 
 	public getSyntacticDiagnostics(id: string, snapshot: tsTypes.IScriptSnapshot, check: () => tsTypes.Diagnostic[]): IDiagnostics[]