diff --git a/Makefile b/Makefile
index 7420ccc..8433415 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,8 @@ ifeq ($(CC), clang)
 		-Wno-padded                   \
 		-Wno-format-nonliteral        \
 		-Wno-disabled-macro-expansion \
-		-Wno-conversion
+		-Wno-conversion               \
+		-Wno-missing-prototypes
 
 endif
 ifeq ($(track), no)
diff --git a/ast.c b/ast.c
index 6cad3c0..7061f1e 100644
--- a/ast.c
+++ b/ast.c
@@ -1641,7 +1641,7 @@ bool ast_binary_codegen(ast_binary *self, ast_function *func, bool lvalue, ir_va
 bool ast_binstore_codegen(ast_binstore *self, ast_function *func, bool lvalue, ir_value **out)
 {
     ast_expression_codegen *cgen;
-    ir_value *leftl, *leftr, *right, *bin;
+    ir_value *leftl = NULL, *leftr, *right, *bin;
 
     ast_value       *arr;
     ast_value       *idx = 0;
diff --git a/util.c b/util.c
index e6823e9..9144778 100644
--- a/util.c
+++ b/util.c
@@ -527,7 +527,7 @@ typedef struct hash_node_t {
 
 
 size_t _util_hthash(hash_table_t *ht, const char *key) {
-    uint64_t val;
+    uint64_t val = 0;
     size_t   len = strlen(key);
     size_t   itr = 0;