diff --git a/tests/testcases/@name-and-@description.test.sh b/tests/testcases/@name-and-@description.test.sh
index 51adb92..71925f9 100644
--- a/tests/testcases/@name-and-@description.test.sh
+++ b/tests/testcases/@name-and-@description.test.sh
@@ -40,25 +40,25 @@ c
 
 ## Index
 
-* [a()](#a)
-* [b()](#b)
-* [c()](#c)
+* [a](#a)
+* [b](#b)
+* [c](#c)
 
-### a()
+### a
 
 func a
 line a 2
 
 _Function has no arguments._
 
-### b()
+### b
 
 func b
 ab
 
 _Function has no arguments._
 
-### c()
+### c
 
 func c
 
diff --git a/tests/testcases/@set.test.sh b/tests/testcases/@set.test.sh
index 8d591be..f313d1a 100644
--- a/tests/testcases/@set.test.sh
+++ b/tests/testcases/@set.test.sh
@@ -24,9 +24,9 @@ a
 
 ## Index
 
-* [b()](#b)
+* [b](#b)
 
-### b()
+### b
 
 func b
 
diff --git a/tests/testcases/function-in-@example.test.sh b/tests/testcases/function-in-@example.test.sh
index 95f5697..fe77290 100644
--- a/tests/testcases/function-in-@example.test.sh
+++ b/tests/testcases/function-in-@example.test.sh
@@ -30,9 +30,9 @@ EOF
 tests:put expected <<EOF
 ## Index
 
-* [tests:value()](#testsvalue)
+* [tests:value](#testsvalue)
 
-### tests:value()
+### tests:value
 
 Same, as \`tests:eval\`, but writes stdout into given variable and
 return stderr as expected.
diff --git a/tests/testcases/function-tags.test.sh b/tests/testcases/function-tags.test.sh
index 19756b4..95da78c 100644
--- a/tests/testcases/function-tags.test.sh
+++ b/tests/testcases/function-tags.test.sh
@@ -29,9 +29,9 @@ EOF
 tests:put expected <<EOF
 ## Index
 
-* [some:first:func()](#somefirstfunc)
+* [some:first:func](#somefirstfunc)
 
-### some:first:func()
+### some:first:func
 
 Multiline description goes here and
 there
diff --git a/tests/testcases/issue-12-no-space-in-function-declaration.test.sh b/tests/testcases/issue-12-no-space-in-function-declaration.test.sh
index 63777c2..ab44dfb 100644
--- a/tests/testcases/issue-12-no-space-in-function-declaration.test.sh
+++ b/tests/testcases/issue-12-no-space-in-function-declaration.test.sh
@@ -17,14 +17,14 @@ EOF
 tests:put expected <<EOF
 ## Index
 
-* [fn1()](#fn1)
-* [fn2()](#fn2)
+* [fn1](#fn1)
+* [fn2](#fn2)
 
-### fn1()
+### fn1
 
 a desc for fn1
 
-### fn2()
+### fn2
 
 a desc for fn2
 EOF
diff --git a/tests/testcases/issue-25-missing-trailing-newline-in-see-also.test.sh b/tests/testcases/issue-25-missing-trailing-newline-in-see-also.test.sh
index fbe796e..05c821d 100644
--- a/tests/testcases/issue-25-missing-trailing-newline-in-see-also.test.sh
+++ b/tests/testcases/issue-25-missing-trailing-newline-in-see-also.test.sh
@@ -18,10 +18,10 @@ EOF
 tests:put expected <<EOF
 ## Index
 
-* [fn1()](#fn1)
-* [fn2()](#fn2)
+* [fn1](#fn1)
+* [fn2](#fn2)
 
-### fn1()
+### fn1
 
 a desc for fn1
 
@@ -29,7 +29,7 @@ a desc for fn1
 
 * [fn2()](#fn2)
 
-### fn2()
+### fn2
 
 a desc for fn2
 EOF
diff --git a/tests/testcases/issue-4-whitespace-in-function-declaration.test.sh b/tests/testcases/issue-4-whitespace-in-function-declaration.test.sh
index 5abdc45..fd522cd 100644
--- a/tests/testcases/issue-4-whitespace-in-function-declaration.test.sh
+++ b/tests/testcases/issue-4-whitespace-in-function-declaration.test.sh
@@ -43,14 +43,14 @@ EOF
 tests:put expected <<EOF
 ## Index
 
-* [fn()](#fn)
-* [spaces()](#spaces)
-* [tab1()](#tab1)
-* [tab2()](#tab2)
-* [tab3()](#tab3)
-* [tab4()](#tab4)
+* [fn](#fn)
+* [spaces](#spaces)
+* [tab1](#tab1)
+* [tab2](#tab2)
+* [tab3](#tab3)
+* [tab4](#tab4)
 
-### fn()
+### fn
 
 #### Arguments
 
@@ -60,7 +60,7 @@ tests:put expected <<EOF
 
 * result of fn
 
-### spaces()
+### spaces
 
 #### Arguments
 
@@ -70,7 +70,7 @@ tests:put expected <<EOF
 
 * result of spaces
 
-### tab1()
+### tab1
 
 #### Arguments
 
@@ -80,7 +80,7 @@ tests:put expected <<EOF
 
 * result of tab1
 
-### tab2()
+### tab2
 
 #### Arguments
 
@@ -90,7 +90,7 @@ tests:put expected <<EOF
 
 * result of tab2
 
-### tab3()
+### tab3
 
 #### Arguments
 
@@ -100,7 +100,7 @@ tests:put expected <<EOF
 
 * result of tab3
 
-### tab4()
+### tab4
 
 #### Arguments
 
diff --git a/tests/testcases/table-of-contents.test.sh b/tests/testcases/table-of-contents.test.sh
index d96361b..9c2893e 100644
--- a/tests/testcases/table-of-contents.test.sh
+++ b/tests/testcases/table-of-contents.test.sh
@@ -19,16 +19,16 @@ EOF
 tests:put expected <<EOF
 ## Index
 
-* [some:first:func()](#somefirstfunc)
-* [some_other_func()](#some_other_func)
+* [some:first:func](#somefirstfunc)
+* [some_other_func](#some_other_func)
 
-### some:first:func()
+### some:first:func
 
 example function 1
 
 _Function has no arguments._
 
-### some_other_func()
+### some_other_func
 
 function with underscores