diff --git a/tccpp.c b/tccpp.c
index bdf2815..7e5cdcf 100644
--- a/tccpp.c
+++ b/tccpp.c
@@ -3023,7 +3023,7 @@ static int next_argstream(Sym **nested_list, int can_read_stream, TokenString *w
         if (macro_ptr) {
             p = macro_ptr, t = *p;
             if (ws_str) {
-                while (is_space(t) || TOK_LINEFEED == t)
+                while (is_space(t) || TOK_LINEFEED == t || TOK_PLCHLDR == t)
                     tok_str_add(ws_str, t), t = *++p;
             }
             if (t == 0 && can_read_stream) {
@@ -3152,7 +3152,9 @@ static int macro_subst_tok(
             } else {
                 tok_str_free_str(ws_str.str);
             }
-            next_nomacro(); /* eat '(' */
+	    do {
+		next_nomacro(); /* eat '(' */
+	    } while (tok == TOK_PLCHLDR);
 
             /* argument macro */
             args = NULL;
diff --git a/tests/pp/18.c b/tests/pp/18.c
new file mode 100644
index 0000000..0961426
--- /dev/null
+++ b/tests/pp/18.c
@@ -0,0 +1,15 @@
+#define M_RETI_ARG27(x,y,z,aa, ...)    aa
+#define M_RET_ARG27(...)        M_RETI_ARG27(__VA_ARGS__)
+#define M_COMMA_P(...)          M_RET_ARG27(__VA_ARGS__, 1, 1, 0, useless)
+#define M_EMPTYI_DETECT(...)    0, 1,
+#define M_EMPTYI_P_C1(...)      M_COMMA_P(M_EMPTYI_DETECT __VA_ARGS__ () )
+#define EX
+#define empty(x)
+#define fnlike(x) yeah x
+/* If the following macro is called with empty arg (X183), the use
+   of 'x' between fnlike and '(' doesn't hinder the recognition of this
+   being a further fnlike macro invocation.  */
+#define usefnlike(x) fnlike x (x)
+X181 M_EMPTYI_P_C1()
+X182 M_EMPTYI_P_C1(x)
+X183 usefnlike()
diff --git a/tests/pp/18.expect b/tests/pp/18.expect
new file mode 100644
index 0000000..447a9b2
--- /dev/null
+++ b/tests/pp/18.expect
@@ -0,0 +1,3 @@
+X181 1
+X182 0
+X183 yeah