diff --git a/.changes/next-release/bugfix-48a5cdf7-da5b-4b77-b7b6-a0996d3cf7ff.json b/.changes/next-release/bugfix-48a5cdf7-da5b-4b77-b7b6-a0996d3cf7ff.json
new file mode 100644
index 00000000000..98f2faf0c16
--- /dev/null
+++ b/.changes/next-release/bugfix-48a5cdf7-da5b-4b77-b7b6-a0996d3cf7ff.json
@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Fix for /review LLM based code issues for file review on windows"
+}
\ No newline at end of file
diff --git a/plugins/amazonq/codewhisperer/jetbrains-community/src/software/aws/toolkits/jetbrains/services/codewhisperer/codescan/sessionconfig/CodeScanSessionConfig.kt b/plugins/amazonq/codewhisperer/jetbrains-community/src/software/aws/toolkits/jetbrains/services/codewhisperer/codescan/sessionconfig/CodeScanSessionConfig.kt
index 952c46c0d0f..c6cf9205ea7 100644
--- a/plugins/amazonq/codewhisperer/jetbrains-community/src/software/aws/toolkits/jetbrains/services/codewhisperer/codescan/sessionconfig/CodeScanSessionConfig.kt
+++ b/plugins/amazonq/codewhisperer/jetbrains-community/src/software/aws/toolkits/jetbrains/services/codewhisperer/codescan/sessionconfig/CodeScanSessionConfig.kt
@@ -169,7 +169,7 @@ class CodeScanSessionConfig(
                 append("+++ b/")
                 append(project.name)
                 append('/')
-                append(fileNio.relativeTo(projectRootNio).pathString)
+                append(fileNio.relativeTo(projectRootNio).toString().replace(File.separator, "/"))
             }
         } catch (e: Exception) {
             LOG.debug(e) { "Failed to create git diff" }