diff --git a/Frameworks/Dumb/Dumb.xcodeproj/project.pbxproj b/Frameworks/Dumb/Dumb.xcodeproj/project.pbxproj
index 37ca6dc50..5d023e61e 100644
--- a/Frameworks/Dumb/Dumb.xcodeproj/project.pbxproj
+++ b/Frameworks/Dumb/Dumb.xcodeproj/project.pbxproj
@@ -643,7 +643,10 @@
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
-				GCC_PREPROCESSOR_DEFINITIONS = "DEBUG=1;_USE_SSE";
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					_USE_SSE,
+					"DEBUG=1",
+				);
 				HEADER_SEARCH_PATHS = dumb/include;
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "@loader_path/../Frameworks";
diff --git a/Frameworks/GME/GME.xcodeproj/project.pbxproj b/Frameworks/GME/GME.xcodeproj/project.pbxproj
index 7e49401c8..b4f247bfc 100644
--- a/Frameworks/GME/GME.xcodeproj/project.pbxproj
+++ b/Frameworks/GME/GME.xcodeproj/project.pbxproj
@@ -1203,7 +1203,10 @@
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "";
-				GCC_PREPROCESSOR_DEFINITIONS = "HAVE_STDINT_H;DEBUG=1";
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					HAVE_STDINT_H,
+					"DEBUG=1",
+				);
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "@loader_path/../Frameworks";
 				PRECOMPS_INCLUDE_HEADERS_FROM_BUILT_PRODUCTS_DIR = NO;
@@ -1226,7 +1229,10 @@
 				GCC_MODEL_TUNING = G5;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "";
-				GCC_PREPROCESSOR_DEFINITIONS = "HAVE_STDINT_H;NDEBUG";
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					HAVE_STDINT_H,
+					NDEBUG,
+				);
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "@loader_path/../Frameworks";
 				PRECOMPS_INCLUDE_HEADERS_FROM_BUILT_PRODUCTS_DIR = NO;
diff --git a/Frameworks/Ogg/ogg.xcodeproj/project.pbxproj b/Frameworks/Ogg/ogg.xcodeproj/project.pbxproj
index e30279590..eac80a5ee 100644
--- a/Frameworks/Ogg/ogg.xcodeproj/project.pbxproj
+++ b/Frameworks/Ogg/ogg.xcodeproj/project.pbxproj
@@ -223,7 +223,10 @@
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = ogg_Prefix.pch;
-				GCC_PREPROCESSOR_DEFINITIONS = "DEBUG=1;__MACOSX__";
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					__MACOSX__,
+				);
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "@loader_path/Frameworks";
 				PRODUCT_NAME = ogg;