diff --git a/Makefile b/Makefile
index 73d0d48..882460e 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ FNAME_gtk := flips
 FNAME_windows := flips.exe
 FNAME_cli := flips
 
-CXX = g++
+CXX ?= g++
 
 XFILES :=