diff --git a/Frameworks/vgmstream/vgmstream.xcodeproj/project.pbxproj b/Frameworks/vgmstream/vgmstream.xcodeproj/project.pbxproj
index 44726c509..940cb508a 100644
--- a/Frameworks/vgmstream/vgmstream.xcodeproj/project.pbxproj
+++ b/Frameworks/vgmstream/vgmstream.xcodeproj/project.pbxproj
@@ -1654,6 +1654,7 @@
 					"DEBUG=1",
 					"$(inherited)",
 					BUILD_VGMSTREAM,
+					"VAR_ARRAYS=1",
 				);
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -1690,7 +1691,11 @@
 				ENABLE_NS_ASSERTIONS = NO;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
-				GCC_PREPROCESSOR_DEFINITIONS = BUILD_VGMSTREAM;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					BUILD_VGMSTREAM,
+					"VAR_ARRAYS=1",
+					"$(inherited)",
+				);
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;