diff --git a/CHANGES b/CHANGES
index 69761f50..a2083592 100644
--- a/CHANGES
+++ b/CHANGES
@@ -17,7 +17,7 @@ Changes with Unit 1.6                                            15 Nov 2018
     *) Bugfix: "freed pointer is out of pool" alerts might have appeared in
        log.
 
-    *) Bugfix: module discovery didn't work on 64-bit big-endian systems
+    *) Bugfix: module discovery did not work on 64-bit big-endian systems
        like IBM/S390x.
 
 
@@ -41,7 +41,7 @@ Changes with Unit 1.5                                            25 Oct 2018
        producing "last message send failed: Resource temporarily
        unavailable" alerts in log; the bug had appeared in 1.4.
 
-    *) Bugfix: Go applications didn't work when Unit was built with musl C
+    *) Bugfix: Go applications did not work when Unit was built with musl C
        library.
 
 
diff --git a/docs/changes.xml b/docs/changes.xml
index b3bc33ee..f6f29848 100644
--- a/docs/changes.xml
+++ b/docs/changes.xml
@@ -66,7 +66,7 @@ various compatibility issues with Node.js applications.
 
 <change type="bugfix">
 <para>
-module discovery didn't work on 64-bit big-endian systems like IBM/S390x.
+module discovery did not work on 64-bit big-endian systems like IBM/S390x.
 </para>
 </change>
 
@@ -138,7 +138,7 @@ the bug had appeared in 1.4.
 
 <change type="bugfix">
 <para>
-Go applications didn't work when Unit was built with musl C library.
+Go applications did not work when Unit was built with musl C library.
 </para>
 </change>