diff --git a/libctru/include/3ds/svc.h b/libctru/include/3ds/svc.h
index 733db1a..ab0230c 100644
--- a/libctru/include/3ds/svc.h
+++ b/libctru/include/3ds/svc.h
@@ -86,4 +86,5 @@ s32  svcGetProcessInfo(s64* out, Handle process, u32 type);
 s32  svcConnectToPort(volatile Handle* out, const char* portName);
 s32  svcSendSyncRequest(Handle session);
 s32  svcGetProcessId(u32 *out, Handle handle);
+s32  svcGetThreadId(u32 *out, Handle handle);
 s32  svcOutputDebugString(const char* str, int length);
diff --git a/libctru/source/svc.s b/libctru/source/svc.s
index 3fac109..ded970f 100644
--- a/libctru/source/svc.s
+++ b/libctru/source/svc.s
@@ -281,4 +281,13 @@ svcReleaseSemaphore:
     svc 0x16
     pop {r3}
     str r1, [r3]
-    bx  lr
\ No newline at end of file
+    bx  lr
+
+.global svcGetThreadId
+.type svcGetThreadId, %function
+svcGetThreadId:
+    str r0, [sp,#-0x4]!
+    svc 0x37
+    ldr r3, [sp], #4
+    str r1, [r3]
+    bx  lr