diff --git a/gc.c b/gc.c
index 13df5c7a..0bcfeeb4 100644
--- a/gc.c
+++ b/gc.c
@@ -438,9 +438,9 @@ PHASE 2 - multi-threaded mutator (IE, more than one stack thread):
 //
 // Note: will need to use atomics and/or locking to access any
 // variables shared between threads
-static int        gc_color_mark = 0; // Black, is swapped during GC
-//static const int  gc_color_grey = 1; // TODO: appears unused, clean up
-static int        gc_color_clear = 2; // White, is swapped during GC
+static int        gc_color_mark = 2; // Black, is swapped during GC
+static int        gc_color_clear = 3; // White, is swapped during GC
+//static const int  gc_color_grey = 4; // TODO: appears unused, clean up
 // unfortunately this had to be split up; const colors are located in types.h
 
 static int gc_status_col;
diff --git a/include/cyclone/types.h b/include/cyclone/types.h
index 85c5517d..ae9e3b3a 100644
--- a/include/cyclone/types.h
+++ b/include/cyclone/types.h
@@ -91,8 +91,8 @@ typedef enum { STAGE_CLEAR_OR_MARKING
 // Constant colors are defined here.
 // The mark/clear colors are defined in the gc module because
 // the collector swaps their values as an optimization.
-const int  gc_color_blue = 3; // Unallocate memory
-const int gc_color_red = 4; // Memory on the stack
+const int gc_color_red = 0; // Memory not to be GC'd, such as on the stack
+const int  gc_color_blue = 1; // Unallocated memory
 
 /* Utility functions */
 void **vpbuffer_realloc(void **buf, int *len);