diff --git a/src/terminal/display.c b/src/terminal/display.c
index 90bc6f00..fff61d18 100644
--- a/src/terminal/display.c
+++ b/src/terminal/display.c
@@ -26,7 +26,6 @@
 #include "terminal/types.h"
 
 #include <math.h>
-#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
@@ -333,16 +332,16 @@ void guac_terminal_display_reset_palette(guac_terminal_display* display) {
 }
 
 int guac_terminal_display_assign_color(guac_terminal_display* display,
-        int index, uint8_t red, uint8_t green, uint8_t blue) {
+        int index, const guac_terminal_color* color) {
 
     /* Assignment fails if out-of-bounds */
     if (index < 0 || index > 255)
         return 1;
 
     /* Copy color components */
-    display->palette[index].red   = red;
-    display->palette[index].green = green;
-    display->palette[index].blue  = blue;
+    display->palette[index].red   = color->red;
+    display->palette[index].green = color->green;
+    display->palette[index].blue  = color->blue;
 
     /* Color successfully stored */
     return 0;
diff --git a/src/terminal/terminal/display.h b/src/terminal/terminal/display.h
index c843bb88..e51b07fd 100644
--- a/src/terminal/terminal/display.h
+++ b/src/terminal/terminal/display.h
@@ -232,9 +232,8 @@ void guac_terminal_display_free(guac_terminal_display* display);
 void guac_terminal_display_reset_palette(guac_terminal_display* display);
 
 /**
- * Replaces the color in the palette at the given index with a new color having
- * the given RGB components. If the index is invalid, the assignment is
- * ignored.
+ * Replaces the color in the palette at the given index with the given color.
+ * If the index is invalid, the assignment is ignored.
  *
  * @param display
  *     The display whose palette is being changed.
@@ -242,24 +241,15 @@ void guac_terminal_display_reset_palette(guac_terminal_display* display);
  * @param index
  *     The index of the palette entry to change.
  *
- * @param red
- *     The red color component of the color to assign to the palette entry
- *     having the given index.
- *
- * @param green
- *     The green color component of the color to assign to the palette entry
- *     having the given index.
- *
- * @param blue
- *     The blue color component of the color to assign to the palette entry
- *     having the given index.
+ * @param color
+ *     The color to assign to the palette entry having the given index.
  *
  * @returns
  *     Zero if the assignment was successful, non-zero if the assignment
  *     failed.
  */
 int guac_terminal_display_assign_color(guac_terminal_display* display,
-        int index, uint8_t red, uint8_t green, uint8_t blue);
+        int index, const guac_terminal_color* color);
 
 /**
  * Retrieves the color within the palette at the given index, if such a color