diff --git a/Macros.h b/Macros.h
index e42cbe53..2f92acb1 100644
--- a/Macros.h
+++ b/Macros.h
@@ -12,7 +12,7 @@
 #endif
 
 #ifndef CLAMP
-#define CLAMP(x, low, high)	(assert((low) < (high)), ((x) > (high)) ? (high) : MAXIMUM(x, low))
+#define CLAMP(x, low, high)	(assert((low) <= (high)), ((x) > (high)) ? (high) : MAXIMUM(x, low))
 #endif
 
 #ifndef ARRAYSIZE