diff --git a/src/joystick/dummy/SDL_sysjoystick.c b/src/joystick/dummy/SDL_sysjoystick.c
index 4ec6d1bdf..56e633d21 100644
--- a/src/joystick/dummy/SDL_sysjoystick.c
+++ b/src/joystick/dummy/SDL_sysjoystick.c
@@ -22,7 +22,7 @@
 
 #if defined(SDL_JOYSTICK_DUMMY) || defined(SDL_JOYSTICK_DISABLED)
 
-/* This is the system specific header for the SDL joystick API */
+/* This is the dummy implementation of the SDL joystick API */
 
 #include "SDL_joystick.h"
 #include "../SDL_sysjoystick.h"
diff --git a/src/joystick/haiku/SDL_haikujoystick.cc b/src/joystick/haiku/SDL_haikujoystick.cc
index e3c984140..1dc50d483 100644
--- a/src/joystick/haiku/SDL_haikujoystick.cc
+++ b/src/joystick/haiku/SDL_haikujoystick.cc
@@ -22,7 +22,7 @@
 
 #ifdef SDL_JOYSTICK_HAIKU
 
-/* This is the system specific header for the SDL joystick API */
+/* This is the Haiku implementation of the SDL joystick API */
 
 #include <os/support/String.h>
 #include <os/device/Joystick.h>
diff --git a/src/joystick/iphoneos/SDL_sysjoystick.m b/src/joystick/iphoneos/SDL_sysjoystick.m
index 31d40a5fc..da8ba70bb 100644
--- a/src/joystick/iphoneos/SDL_sysjoystick.m
+++ b/src/joystick/iphoneos/SDL_sysjoystick.m
@@ -20,7 +20,7 @@
 */
 #include "../../SDL_internal.h"
 
-/* This is the system specific header for the SDL joystick API */
+/* This is the iOS implementation of the SDL joystick API */
 
 #include "SDL_joystick.h"
 #include "../SDL_sysjoystick.h"
diff --git a/src/joystick/linux/SDL_sysjoystick.c b/src/joystick/linux/SDL_sysjoystick.c
index a8e10bc75..3f329b842 100644
--- a/src/joystick/linux/SDL_sysjoystick.c
+++ b/src/joystick/linux/SDL_sysjoystick.c
@@ -26,7 +26,7 @@
 #error SDL now requires a Linux 2.4+ kernel with /dev/input/event support.
 #endif
 
-/* This is the system specific header for the SDL joystick API */
+/* This is the Linux implementation of the SDL joystick API */
 
 #include <sys/stat.h>
 #include <unistd.h>
diff --git a/src/joystick/psp/SDL_sysjoystick.c b/src/joystick/psp/SDL_sysjoystick.c
index b953372d6..b48034e6a 100644
--- a/src/joystick/psp/SDL_sysjoystick.c
+++ b/src/joystick/psp/SDL_sysjoystick.c
@@ -19,7 +19,7 @@
   3. This notice may not be removed or altered from any source distribution.
 */
 
-/* This is the system specific header for the SDL joystick API */
+/* This is the PSP implementation of the SDL joystick API */
 #include <pspctrl.h>
 #include <pspkernel.h>