diff --git a/binding/binding-mri.cpp b/binding/binding-mri.cpp
index f3a25a7c..a6015874 100644
--- a/binding/binding-mri.cpp
+++ b/binding/binding-mri.cpp
@@ -61,6 +61,8 @@ extern "C" {
 #define NULL_IO "/dev/null"
 #endif
 
+#define MACRO_STRINGIFY(x) #x
+
 extern const char module_rpg1[];
 extern const char module_rpg2[];
 extern const char module_rpg3[];
@@ -206,6 +208,7 @@ static void mriBindingInit() {
 
   /* Load global constants */
   rb_gv_set("MKXP", Qtrue);
+  rb_const_set(mod, rb_intern("VERSION"), rb_str_new_cstr(MACRO_STRINGIFY(MKXPZ_VERSION)));
 
   VALUE debug = rb_bool_new(shState->config().editor.debug);
   if (rgssVer == 1)
diff --git a/binding/miniffi.c b/binding/miniffi.c
index d724ee95..8b022191 100644
--- a/binding/miniffi.c
+++ b/binding/miniffi.c
@@ -8,13 +8,13 @@ mffi_value miniffi_call_intern(MINIFFI_FUNC target, MiniFFIFuncArgs *p, int npar
                                  p->params[4], p->params[5], p->params[6], p->params[7]);
 }
 #else
-mffi_value miniffi_call_intern(MINIFFI_FUNC target, MiniFFIFuncArgs *params, size_t nparams) {
-    return call_asm(target, params, nparams);
+mffi_value miniffi_call_intern(MINIFFI_FUNC target, MiniFFIFuncArgs *p, size_t nparams) {
+    return call_asm(target, p, nparams);
 }
 
 #define INTEL_ASM ".intel_syntax noprefix\n"
 #ifdef _WIN32
-mffi_value call_asm(MINIFFI_FUNC target, MINIFFIFuncArgs *params, size_t nparams) {
+mffi_value call_asm(MINIFFI_FUNC target, MINIFFIFuncArgs *p, size_t nparams) {
     mffi_value ret;
     void *old_esp = 0;
 
@@ -57,7 +57,7 @@ mffi_value call_asm(MINIFFI_FUNC target, MINIFFIFuncArgs *params, size_t nparams
     return ret;
 }
 #else
-mffi_value call_asm(MINIFFI_FUNC target, MINIFFIFuncArgs *params, size_t nparams) {
+mffi_value call_asm(MINIFFI_FUNC target, MINIFFIFuncArgs *p, size_t nparams) {
     mffi_value ret;
     void *old_rsp = 0;
     asm volatile(INTEL_ASM
diff --git a/macos/mkxp-z.xcodeproj/project.pbxproj b/macos/mkxp-z.xcodeproj/project.pbxproj
index a72dd4db..17235e8b 100644
--- a/macos/mkxp-z.xcodeproj/project.pbxproj
+++ b/macos/mkxp-z.xcodeproj/project.pbxproj
@@ -3688,6 +3688,7 @@
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					MKXPZ_BUILD_XCODE,
 					"MKXPZ_ALCDEVICE=ALCdevice",
+					"MKXPZ_VERSION=\"$(MARKETING_VERSION)\"",
 					MKXPZ_MINIFFI,
 					AL_LIBTYPE_STATIC,
 				);
@@ -3727,6 +3728,7 @@
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					MKXPZ_BUILD_XCODE,
 					"MKXPZ_ALCDEVICE=ALCdevice",
+					"MKXPZ_VERSION=\"$(MARKETING_VERSION)\"",
 					MKXPZ_MINIFFI,
 					AL_LIBTYPE_STATIC,
 				);
diff --git a/meson.build b/meson.build
index 539f7aaf..1aaa2a78 100644
--- a/meson.build
+++ b/meson.build
@@ -22,6 +22,7 @@ sizeof = {'void*': compilers['cpp'].sizeof('void*'),
 win64 = (sizeof['void*'] != sizeof['long'])
 
 global_args += '-DMKXPZ_BUILD_MESON'
+global_args += '-DMKXPZ_VERSION="@0@"'.format(meson.project_version())
 # ====================
 # Ext libs
 # ====================