diff --git a/tests/test_cexercise_completions/cexercise/completions.c b/tests/test_cexercise_completions/cexercise/completions.c
index 862b8855c..acab4124d 100644
--- a/tests/test_cexercise_completions/cexercise/completions.c
+++ b/tests/test_cexercise_completions/cexercise/completions.c
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include <assert.h>
+#define xxxx(a) a*a
 
 /*
   Check completion on following demonstration lines!  Each
@@ -62,7 +62,7 @@ void completions() {
     ;
 
     // macro names completions
-    ass
+    xxx
     ;
 
 
diff --git a/tests/test_cexercise_completions/expected b/tests/test_cexercise_completions/expected
index 0c20775aa..8bc53e7fb 100644
--- a/tests/test_cexercise_completions/expected
+++ b/tests/test_cexercise_completions/expected
@@ -27,7 +27,6 @@ end-of-options
 
 <sync>
 <all-completions nofocus=0 len=<n>>asprintf  :int asprintf(__ERROR__, __ERROR__, ...)
-assert    :#define assert(expr)
 auto      :keyword
 asm       :keyword</all-completions>
 -xrefrc CURDIR/.c-xrefrc -p CURDIR -olcxcomplet -maxcompls=500 -olinelen=236 -olmark=0 -olcursor=1689 CURDIR/cexercise/completions.c
@@ -72,7 +71,7 @@ end-of-options
 <goto>
 <position-lc line=65 col=4 len=<n>>CURDIR/cexercise/completions.c</position-lc>
 </goto>
-<single-completion len=<n>>assert</single-completion>
+<single-completion len=<n>>xxxx</single-completion>
 -xrefrc CURDIR/.c-xrefrc -p CURDIR -olcxcomplet -maxcompls=500 -olinelen=236 -olmark=0 -olcursor=1936 CURDIR/cexercise/completions.c
 end-of-options