diff --git a/backend_test/main.c b/backend_test/main.c
index c7525dc..b786ed8 100644
--- a/backend_test/main.c
+++ b/backend_test/main.c
@@ -12,11 +12,11 @@
 #include <GL/glu.h>
 
 #ifdef IMGUI_HAS_IMSTR
-#define igBegin igBegin_S
-#define igSliderFloat igSliderFloat_S
-#define igCheckbox igCheckbox_S
-#define igColorEdit3 igColorEdit3_S
-#define igButton igButton_S
+#define igBegin igBeginChpt
+#define igSliderFloat igSliderFloatChpt
+#define igCheckbox igCheckboxChpt
+#define igColorEdit3 igColorEdit3Chpt
+#define igButton igButtonChpt
 #endif
 
 SDL_Window *window = NULL;
diff --git a/test/main.c b/test/main.c
index b7c7f1f..c722c18 100644
--- a/test/main.c
+++ b/test/main.c
@@ -3,8 +3,11 @@
 #include "../cimgui.h"
 
 #ifdef IMGUI_HAS_IMSTR
-#define igBegin igBegin_S
-#define igSliderFloat igSliderFloat_S
+#define igBegin igBeginChpt
+#define igSliderFloat igSliderFloatChpt
+#define igCheckbox igCheckboxChpt
+#define igColorEdit3 igColorEdit3Chpt
+#define igButton igButtonChpt
 #endif
 
 int main(void)