diff --git a/simplecpp.cpp b/simplecpp.cpp
index 599ffdf..70364f7 100755
--- a/simplecpp.cpp
+++ b/simplecpp.cpp
@@ -2832,6 +2832,8 @@ static void simplifyName(simplecpp::TokenList &expr)
                 if (alt)
                     continue;
             }
+            if (tok->next && tok->next->str() == "(")
+                throw std::runtime_error("undefined function-like macro invocation: " + tok->str() + "( ... )");
             tok->setstr("0");
         }
     }
diff --git a/test.cpp b/test.cpp
index cec253b..18ca8af 100644
--- a/test.cpp
+++ b/test.cpp
@@ -1825,6 +1825,15 @@ static void ifexpr()
     ASSERT_EQUALS("\n\n1", preprocess(code));
 }
 
+static void ifUndefFuncStyleMacro()
+{
+    const char code[] = "#if A(<dir/file.h>)\n"
+                        "#endif\n";
+    simplecpp::OutputList outputList;
+    ASSERT_EQUALS("", preprocess(code, &outputList));
+    ASSERT_EQUALS("file0,1,syntax_error,failed to evaluate #if condition, undefined function-like macro invocation: A( ... )\n", toString(outputList));
+}
+
 static void location1()
 {
     const char *code;
@@ -3145,6 +3154,7 @@ int main(int argc, char **argv)
     TEST_CASE(ifdiv0);
     TEST_CASE(ifalt); // using "and", "or", etc
     TEST_CASE(ifexpr);
+    TEST_CASE(ifUndefFuncStyleMacro);
 
     TEST_CASE(location1);
     TEST_CASE(location2);