diff --git a/core/os/os_darwin.odin b/core/os/os_darwin.odin
index 530e74575..4c32323ff 100644
--- a/core/os/os_darwin.odin
+++ b/core/os/os_darwin.odin
@@ -333,7 +333,7 @@ foreign dl {
 	@(link_name="dlerror") _unix_dlerror :: proc() -> cstring ---
 }
 
-get_last_error :: proc() -> int {
+get_last_error :: proc "contextless" () -> int {
 	return __error()^
 }
 
diff --git a/core/os/os_freebsd.odin b/core/os/os_freebsd.odin
index b0978ad6e..2a0381a5d 100644
--- a/core/os/os_freebsd.odin
+++ b/core/os/os_freebsd.odin
@@ -303,7 +303,7 @@ is_path_separator :: proc(r: rune) -> bool {
 	return r == '/'
 }
 
-get_last_error :: proc() -> int {
+get_last_error :: proc "contextless" () -> int {
 	return __errno_location()^
 }
 
diff --git a/core/os/os_linux.odin b/core/os/os_linux.odin
index e299734ee..ac40b8cde 100644
--- a/core/os/os_linux.odin
+++ b/core/os/os_linux.odin
@@ -441,7 +441,7 @@ _get_errno :: proc(res: int) -> Errno {
 }
 
 // get errno from libc
-get_last_error :: proc() -> int {
+get_last_error :: proc "contextless" () -> int {
 	return __errno_location()^
 }
 
diff --git a/core/os/os_openbsd.odin b/core/os/os_openbsd.odin
index 2fb8e4065..0375107ca 100644
--- a/core/os/os_openbsd.odin
+++ b/core/os/os_openbsd.odin
@@ -294,7 +294,7 @@ is_path_separator :: proc(r: rune) -> bool {
 	return r == '/'
 }
 
-get_last_error :: proc() -> int {
+get_last_error :: proc "contextless" () -> int {
 	return __errno()^
 }