diff --git a/GNUmakefile b/GNUmakefile
index 9801b5ae..c5bd1a4a 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -246,8 +246,8 @@ $(IOS_TARGETS): CC = xcrun --sdk iphoneos clang -isysroot $(IOS_SYSROOT) -arch a
 $(IOSSIM_TARGETS): IOSSIM_SYSROOT := $(shell xcrun --sdk iphonesimulator --show-sdk-path)
 $(IOSSIM_TARGETS): CC = xcrun --sdk iphonesimulator clang -isysroot $(IOSSIM_SYSROOT) -arch x86_64
 else ifeq ($(UNAME_S),Linux)
-$(IOS_TARGETS): CFLAGS += -isysroot deps/ios_toolchain/target/SDK/iPhoneOS18.2.sdk -arch arm64 -DTARGET_OS_IPHONE=1
-$(IOS_TARGETS): LDFLAGS += -isysroot deps/ios_toolchain/target/SDK/iPhoneOS18.2.sdk
+$(IOS_TARGETS): CFLAGS += -isysroot deps/ios_toolchain/target/SDKs/iPhoneOS18.2.sdk -arch arm64 -DTARGET_OS_IPHONE=1
+$(IOS_TARGETS): LDFLAGS += -isysroot deps/ios_toolchain/target/SDKs/iPhoneOS18.2.sdk
 $(IOS_TARGETS): CC = PATH=$$PATH:deps/ios_toolchain/target/bin deps/ios_toolchain/target/bin/arm-apple-darwin11-clang
 endif
 $(ANDROID_X86_64_TARGETS): ANDROID_NDK_TARGET_TRIPLE := x86_64-linux-android