diff --git a/src/c_tokenizer.cpp b/src/c_tokenizer.cpp
index 3746cf585..40ae8ceaf 100644
--- a/src/c_tokenizer.cpp
+++ b/src/c_tokenizer.cpp
@@ -362,6 +362,13 @@ void tokenize_c_macro(CTokenize *ctok, const uint8_t *c) {
                         ctok->cur_tok->id = CTokIdNumLitFloat;
                         buf_append_char(&ctok->buf, '.');
                         break;
+                    case 'l':
+                    case 'L':
+                    case 'u':
+                    case 'U':
+                        c -= 1;
+                        ctok->state = CTokStateDecimal;
+                        continue;
                     default:
                         c -= 1;
                         ctok->state = CTokStateOctal;
diff --git a/test/translate_c.zig b/test/translate_c.zig
index eabd01ef6..f5eeceff9 100644
--- a/test/translate_c.zig
+++ b/test/translate_c.zig
@@ -1425,6 +1425,48 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
         \\pub export fn bar() void {}
     );
 
+    cases.addC("u integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0U"
+    ,
+        "pub const ZERO = c_uint(0);"
+    );
+
+    cases.addC("l integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0L"
+    ,
+        "pub const ZERO = c_long(0);"
+    );
+
+    cases.addC("ul integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0UL"
+    ,
+        "pub const ZERO = c_ulong(0);"
+    );
+
+    cases.addC("lu integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0LU"
+    ,
+        "pub const ZERO = c_ulong(0);"
+    );
+
+    cases.addC("ll integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0LL"
+    ,
+        "pub const ZERO = c_longlong(0);"
+    );
+
+    cases.addC("ull integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0ULL"
+    ,
+        "pub const ZERO = c_ulonglong(0);"
+    );
+
+    cases.addC("llu integer suffix after 0 (zero) in macro definition",
+        "#define ZERO 0LLU"
+    ,
+        "pub const ZERO = c_ulonglong(0);"
+    );
+
     // cases.add("empty array with initializer",
     //     "int a[4] = {};"
     // ,