diff --git a/adb/commandline.c b/adb/commandline.c
index af21e38..2df3f09 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -675,7 +675,7 @@
     }
 }
 
-static bool should_escape(const char c)
+static int should_escape(const char c)
 {
     return (c == ' ' || c == '\'' || c == '"' || c == '\\' || c == '(' || c == ')');
 }