diff --git a/.changeset/serious-rules-laugh.md b/.changeset/serious-rules-laugh.md
new file mode 100644
index 0000000000..76bbf9623c
--- /dev/null
+++ b/.changeset/serious-rules-laugh.md
@@ -0,0 +1,5 @@
+---
+"roo-cline": patch
+---
+
+Pass current language to system prompt correctly
diff --git a/src/core/Cline.ts b/src/core/Cline.ts
index 6cf0ca495d..3746fcee3c 100644
--- a/src/core/Cline.ts
+++ b/src/core/Cline.ts
@@ -1125,6 +1125,7 @@ export class Cline extends EventEmitter<ClineEvents> {
 			experiments,
 			enableMcpServerCreation,
 			browserToolEnabled,
+			language,
 		} = (await this.providerRef.deref()?.getState()) ?? {}
 		const { customModes } = (await this.providerRef.deref()?.getState()) ?? {}
 		const systemPrompt = await (async () => {
@@ -1146,6 +1147,7 @@ export class Cline extends EventEmitter<ClineEvents> {
 				this.diffEnabled,
 				experiments,
 				enableMcpServerCreation,
+				language,
 				rooIgnoreInstructions,
 			)
 		})()
diff --git a/src/core/webview/ClineProvider.ts b/src/core/webview/ClineProvider.ts
index bb769f4cb4..6c826d5336 100644
--- a/src/core/webview/ClineProvider.ts
+++ b/src/core/webview/ClineProvider.ts
@@ -1988,6 +1988,7 @@ export class ClineProvider extends EventEmitter<ClineProviderEvents> implements
 				experiments,
 				enableMcpServerCreation,
 				browserToolEnabled,
+				language,
 			} = await this.getState()
 
 			// Create diffStrategy based on current model and settings
@@ -2021,6 +2022,7 @@ export class ClineProvider extends EventEmitter<ClineProviderEvents> implements
 				diffEnabled,
 				experiments,
 				enableMcpServerCreation,
+				language,
 				rooIgnoreInstructions,
 			)
 			return systemPrompt