diff --git a/libc/setjmp/setjmp.c b/libc/setjmp/setjmp.c
index 4c58aa0..05b5a39 100644
--- a/libc/setjmp/setjmp.c
+++ b/libc/setjmp/setjmp.c
@@ -5,6 +5,7 @@ int setjmp(jmp_buf env) {
         "mov %%ebp, %0\n"   // Save BP
         "mov %%esp, %1\n"   // Save SP
         "call 1f\n"         // Call label to push PC to the stack
+        "1:\n"              // Label to jump
         "pop %2\n"          // Save PC
         : "=m"(env._bp), "=m"(env._sp), "=m"(env._pc)  // Locations
     );
@@ -12,7 +13,7 @@ int setjmp(jmp_buf env) {
 }
 
 void longjmp(jmp_buf env, int value) {
-    if (val == 0) return;
+    if (value == 0) return;
 
     __asm__ volatile (
         "mov %0, %%ebp\n"   // Restore BP
diff --git a/todo.txt b/todo.txt
index 0b1f0ca..47f1b53 100644
--- a/todo.txt
+++ b/todo.txt
@@ -38,8 +38,7 @@ Legend:
     - [x] errno.h
     - [ ] float.h
     - [x] limits.h
-    - [ ] math.h
-    - [ ] tgmath.h (if we want type generic)
+    - [x] math.h (maybe a separate libm?) TODO: add errno errors in there
     - [x] setjmp.h (this plagues my mind)
     - [ ] signal.h (we would need signals first)
     - [x] stdarg.h