diff --git a/packages/opencode/src/session/prompt.ts b/packages/opencode/src/session/prompt.ts
index e71162d0b5d..ccbb7315253 100644
--- a/packages/opencode/src/session/prompt.ts
+++ b/packages/opencode/src/session/prompt.ts
@@ -1096,7 +1096,7 @@ export namespace SessionPrompt {
           `
             [[ -f ~/.zshenv ]] && source ~/.zshenv >/dev/null 2>&1 || true
             [[ -f "\${ZDOTDIR:-$HOME}/.zshrc" ]] && source "\${ZDOTDIR:-$HOME}/.zshrc" >/dev/null 2>&1 || true
-            ${input.command}
+            eval ${JSON.stringify(input.command)}
           `,
         ],
       },
@@ -1105,8 +1105,9 @@ export namespace SessionPrompt {
           "-c",
           "-l",
           `
+            shopt -s expand_aliases
             [[ -f ~/.bashrc ]] && source ~/.bashrc >/dev/null 2>&1 || true
-            ${input.command}
+            eval ${JSON.stringify(input.command)}
           `,
         ],
       },