diff --git a/src/strands/models/bedrock.py b/src/strands/models/bedrock.py
index 4a48d7229..4540b4c0e 100644
--- a/src/strands/models/bedrock.py
+++ b/src/strands/models/bedrock.py
@@ -835,6 +835,9 @@ def _stream(
                     if "contentBlockStart" in chunk and chunk["contentBlockStart"].get("start", {}).get("toolUse"):
                         has_tool_use = True
 
+                    if "contentBlockDelta" in chunk and chunk["contentBlockDelta"].get("delta", {}).get("toolUse"):
+                        has_tool_use = True
+
                     # Fix stopReason for streaming responses that contain tool use
                     if (
                         has_tool_use