diff --git a/Changes b/Changes
index b46ffbf46..178b4cc2b 100644
--- a/Changes
+++ b/Changes
@@ -142,18 +142,18 @@ tee.2
 fopen.3
     Elliot Hughes
         Explain BSD vs glibc "a+" difference
-	    Where is the initial read position for an "a+" stream?
+            Where is the initial read position for an "a+" stream?
 
-	    POSIX leaves this unspecified. Most BSD man pages are silent, and
-	    MacOS has the ambiguous "The stream is positioned at the end of
-	    the file", not differentiating between reads and writes other than
-	    to say that fseek(3) does not affect writes. glibc's documentation
-	    explicitly specifies that the initial read position is the
-	    beginning of the file.
+            POSIX leaves this unspecified. Most BSD man pages are silent, and
+            MacOS has the ambiguous "The stream is positioned at the end of
+            the file", not differentiating between reads and writes other than
+            to say that fseek(3) does not affect writes. glibc's documentation
+            explicitly specifies that the initial read position is the
+            beginning of the file.
 
-	    My new wording is based on the BSD implementations, so you may
-	    prefer to replace the non-glibc section with "unspecified", or
-	    indeed remove all claims about the initial read position.
+            My new wording is based on the BSD implementations, so you may
+            prefer to replace the non-glibc section with "unspecified", or
+            indeed remove all claims about the initial read position.
 
 mallinfo.3
     Elliott Hughes