diff --git a/core/color.cpp b/core/color.cpp
index ba4751dc2f3..32f3df6d4bc 100644
--- a/core/color.cpp
+++ b/core/color.cpp
@@ -161,7 +161,7 @@ void Color::invert() {
 
 	r=1.0-r;
 	g=1.0-g;	
-	g=1.0-b;	
+	b=1.0-b;	
 }
 void Color::contrast() {