diff --git a/src/build/build.h b/src/build/build.h
index 2c209a01d..cbf444bf4 100644
--- a/src/build/build.h
+++ b/src/build/build.h
@@ -311,7 +311,7 @@ typedef struct BuildOptions_
 		WinCrtLinking crt_linking;
 	} win;
 	struct {
-		const char *sdk;
+		const char *sysroot;
 		const char *min_version;
 		const char *sdk_version;
 	} macos;
diff --git a/src/build/build_options.c b/src/build/build_options.c
index 7b41539b7..3e6b46c65 100644
--- a/src/build/build_options.c
+++ b/src/build/build_options.c
@@ -877,7 +877,7 @@ static void parse_option(BuildOptions *options)
 			if (match_longopt("macossdk"))
 			{
 				if (at_end() || next_is_opt()) error_exit("error: --macossdk needs a directory.");
-				options->macos.sdk = check_dir(next_arg());
+				options->macos.sysroot = check_dir(next_arg());
 				return;
 			}
 			if (match_longopt("winsdk"))
diff --git a/src/build/builder.c b/src/build/builder.c
index e61ffb893..5f7f2c96b 100644
--- a/src/build/builder.c
+++ b/src/build/builder.c
@@ -283,7 +283,7 @@ static void update_build_target_from_options(BuildTarget *target, BuildOptions *
 	if (options->benchfn) target->benchfn = options->benchfn;
 	target->benchmarking = options->benchmarking;
 	target->testing = options->testing;
-	if (options->macos.sdk) target->macos.sysroot = options->macos.sdk;
+	if (options->macos.sysroot) target->macos.sysroot = options->macos.sysroot;
 	if (options->win.sdk) target->win.sdk = options->win.sdk;
 	if (options->macos.min_version) target->macos.min_version = options->macos.min_version;
 	if (options->macos.sdk_version) target->macos.sdk_version = options->macos.sdk_version;
diff --git a/src/compiler/linker.c b/src/compiler/linker.c
index a3cfdf96c..8e487f82c 100644
--- a/src/compiler/linker.c
+++ b/src/compiler/linker.c
@@ -296,15 +296,14 @@ static void linker_setup_macos(const char ***args_ref, LinkerType linker_type)
 	// Skip if no libc.
 	if (!link_libc()) return;
 
-	const char *sysroot = active_target.macos.sysroot ? active_target.macos.sysroot : macos_sysroot();
-	if (active_target.macos.sdk)
+	if (!active_target.macos.sdk)
 	{
 		error_exit("Cannot crosslink MacOS without providing --macossdk.");
 	}
 	add_arg("-lSystem");
 	add_arg("-lm");
 	add_arg("-syslibroot");
-	add_arg(sysroot);
+	add_arg(active_target.macos.sysroot);
 	if (is_no_pie(platform_target.reloc_model)) add_arg("-no_pie");
 	if (is_pie(platform_target.reloc_model)) add_arg("-pie");
 	add_arg("-platform_version");
diff --git a/src/compiler/target.c b/src/compiler/target.c
index de1470314..99543d196 100644
--- a/src/compiler/target.c
+++ b/src/compiler/target.c
@@ -1941,7 +1941,9 @@ void target_setup(BuildTarget *target)
 
 	if (platform_target.os == OS_TYPE_MACOSX)
 	{
+		if (!active_target.macos.sysroot) active_target.macos.sysroot = macos_sysroot();
 		const char *sysroot = active_target.macos.sysroot ? active_target.macos.sysroot : macos_sysroot();
+
 		active_target.macos.sdk = NULL;
 		if (sysroot)
 		{
diff --git a/src/version.h b/src/version.h
index 3edd8e102..3a6ebdcc3 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define COMPILER_VERSION "0.4.677"
\ No newline at end of file
+#define COMPILER_VERSION "0.4.678"
\ No newline at end of file