diff --git a/src/hooks/non-interactive-env/index.ts b/src/hooks/non-interactive-env/index.ts
index 19316082..0acfaadc 100644
--- a/src/hooks/non-interactive-env/index.ts
+++ b/src/hooks/non-interactive-env/index.ts
@@ -1,6 +1,6 @@
 import type { PluginInput } from "@opencode-ai/plugin"
 import { HOOK_NAME, NON_INTERACTIVE_ENV, SHELL_COMMAND_PATTERNS } from "./constants"
-import { log, buildEnvPrefix, detectShellType } from "../../shared"
+import { log, buildEnvPrefix } from "../../shared"
 
 export * from "./constants"
 export * from "./detector"
@@ -52,11 +52,9 @@ export function createNonInteractiveEnvHook(_ctx: PluginInput) {
       // The env vars (GIT_EDITOR=:, EDITOR=:, etc.) must ALWAYS be injected
       // for git commands to prevent interactive prompts.
 
-      // Detect the shell type dynamically to support native Windows shells
-      // (cmd.exe, PowerShell) in addition to Unix-like shells (bash, zsh).
-      // Fixes Windows compatibility issues when running without Git Bash/WSL.
-      const shellType = detectShellType()
-      const envPrefix = buildEnvPrefix(NON_INTERACTIVE_ENV, shellType)
+      // The bash tool always runs in a Unix-like shell (bash/sh), even on Windows
+      // (via Git Bash, WSL, etc.), so always use unix export syntax.
+      const envPrefix = buildEnvPrefix(NON_INTERACTIVE_ENV, "unix")
       output.args.command = `${envPrefix} ${command}`
 
       log(`[${HOOK_NAME}] Prepended non-interactive env vars to git command`, {