diff --git a/ui/build/config.go b/ui/build/config.go
index 1f7656e..eefe0ed 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -110,6 +110,7 @@
 		"DISPLAY",
 		"GREP_OPTIONS",
 		"NDK_ROOT",
+		"POSIXLY_CORRECT",
 
 		// Drop make flags
 		"MAKEFLAGS",