diff --git a/build.sh b/build.sh
index 5749c68..22e577a 100644
--- a/build.sh
+++ b/build.sh
@@ -4,6 +4,7 @@ if [ ! -d build ]; then
     mkdir build
 fi
 cd build
-clang $(realpath ../src/testing/testing_main.c) -o testing_main -I../src -g -Wall -Wextra -Werror -fdiagnostics-absolute-paths -Wno-single-bit-bitfield-constant-conversion -Wno-unsequenced -Wno-missing-field-initializers -Wno-missing-braces -ldl -lm -lbacktrace
+clang $(realpath ../src/testing/testing_main.c) -o testing_main -I../src -g -Wall -Wextra -Werror -fdiagnostics-absolute-paths -Wno-single-bit-bitfield-constant-conversion -Wno-unsequenced -Wno-missing-field-initializers -Wno-missing-braces -fsanitize=address,undefined -fno-omit-frame-pointer -ldl -lm -lbacktrace
+
 ./testing_main
 cd ..
diff --git a/src/os/os.c b/src/os/os.c
index 00a0437..a94e39b 100644
--- a/src/os/os.c
+++ b/src/os/os.c
@@ -550,7 +550,7 @@ fn s8_t os_read(ma_arena_t *arena, s8_t path) {
         fseek(fd, 0, SEEK_END);
         long size = ftell(fd);
         fseek(fd, 0, SEEK_SET);
-        char *string = malloc(size + 1);
+        char *string = ma_push_array(arena, char, size + 1);
         fread(string, size, 1, fd);
         fclose(fd);