diff --git a/src/port/path.c b/src/port/path.c
index 5c9de0cd331..7bf7cbc9b3e 100644
--- a/src/port/path.c
+++ b/src/port/path.c
@@ -86,7 +86,11 @@ skip_drive(const char *path)
 bool
 has_drive_prefix(const char *path)
 {
+#ifdef WIN32
 	return skip_drive(path) != path;
+#else
+	return false;
+#endif
 }
 
 /*