diff --git a/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go b/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
index 637e3b58a..906f7f3a9 100644
--- a/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
+++ b/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
@@ -723,10 +723,18 @@ func (b *bedrockProvider) onChatCompletionRequestBody(ctx wrapper.HttpContext, b
 
 func (b *bedrockProvider) buildBedrockTextGenerationRequest(origRequest *chatCompletionRequest, headers http.Header) ([]byte, error) {
 	messages := make([]bedrockMessage, 0, len(origRequest.Messages))
-	for i := range origRequest.Messages {
-		messages = append(messages, chatMessage2BedrockMessage(origRequest.Messages[i]))
+	systemMessages := make([]systemContentBlock, 0)
+
+	for _, msg := range origRequest.Messages {
+		if msg.Role == roleSystem {
+			systemMessages = append(systemMessages, systemContentBlock{Text: msg.StringContent()})
+		} else {
+			messages = append(messages, chatMessage2BedrockMessage(msg))
+		}
 	}
+
 	request := &bedrockTextGenRequest{
+		System:   systemMessages,
 		Messages: messages,
 		InferenceConfig: bedrockInferenceConfig{
 			MaxTokens:   origRequest.MaxTokens,