diff --git a/Makefile b/Makefile
index a9adde9..2a96344 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 SOURCES := src/main.c src/util/calloc.c src/util/string.c src/util/hash.c src/lexer/lexer.c src/builtins/builtins.c src/util/memset.c
-CFLAGS := -Oz -nostdlib
+CFLAGS := -g -Oz -nostdlib
 
 UNAME := $(shell uname)
 ARCH := $(shell uname -m)
diff --git a/src/system/linux/linux.c b/src/system/linux/linux.c
index 88020db..253798e 100644
--- a/src/system/linux/linux.c
+++ b/src/system/linux/linux.c
@@ -124,7 +124,7 @@ int msh_execute(char *cmd, char **args) {
     SIZE_TYPE ret;
     char *status_str;
 
-    // msh_linux_setup_signals();
+    /* msh_linux_setup_signals(); */
 
     ret = (SIZE_TYPE)SYSCALL(waitid, P_ALL, fork, &status, WEXITED, &ru);
 
diff --git a/src/system/linux/signal.c b/src/system/linux/signal.c
index d9f35d3..7b51a56 100644
--- a/src/system/linux/signal.c
+++ b/src/system/linux/signal.c
@@ -11,8 +11,7 @@
 #include <asm-generic/signal-defs.h>
 #include <asm-generic/signal.h>
 
-#define INIT_SIGNAL(x)                                                         \
-  SYSCALL(rt_sigaction, x, &sigact, &sigact_old, sizeof(sigset_t));
+#define INIT_SIGNAL(x) SYSCALL(rt_sigaction, x, &sigact, 0, sizeof(sigset_t));
 
 static void signal_handler(int sig) {
   char *status_str = msh_allocate(64);
@@ -25,16 +24,14 @@ static void signal_restorer(void) { SYSCALL_0(rt_sigreturn); }
 
 void msh_linux_setup_signals() {
   struct sigaction sigact;
-  struct sigaction sigact_old;
 
   memset(&sigact, 0, sizeof(sigact));
-  memset(&sigact_old, 0, sizeof(sigact));
 
   sigact.sa_handler = signal_handler;
   sigact.sa_restorer = signal_restorer;
   sigact.sa_flags = SA_RESTORER | SA_RESTART | SA_SIGINFO;
 
-  SYSCALL(rt_sigprocmask, SIG_UNBLOCK, &sigact.sa_mask, &sigact_old.sa_mask,
+  SYSCALL(rt_sigprocmask, SIG_UNBLOCK, &sigact.sa_mask, &sigact.sa_mask,
           sizeof(sigset_t));
 
   INIT_SIGNAL(SIGINT);