diff --git a/doc/ca65.sgml b/doc/ca65.sgml
index 084693474..00d72db56 100644
--- a/doc/ca65.sgml
+++ b/doc/ca65.sgml
@@ -1694,7 +1694,7 @@ either a string or an expression.
   <tscreen><verb>
         .struct Point                   ; Struct size = 4
                 xcoord  .word
-                xcoord  .word
+                ycoord  .word
         .endstruct
 
         P:      .tag    Point           ; Declare a point
diff --git a/libsrc/common/isalpha.s b/libsrc/common/isalpha.s
index 624dec682..093b3d006 100644
--- a/libsrc/common/isalpha.s
+++ b/libsrc/common/isalpha.s
@@ -12,7 +12,7 @@ _isalpha:
 	bne	@L1		; Jump if no
 	tay
 	lda	__ctype,y	; Get character classification
-       	and    	#CT_ALPHA	; Mask character bits
+	and	#CT_ALPHA	; Mask character bits
 	rts
 
 @L1:	lda	#$00		; Return false
diff --git a/libsrc/common/isdigit.s b/libsrc/common/isdigit.s
index 339fef61f..61dd637bb 100644
--- a/libsrc/common/isdigit.s
+++ b/libsrc/common/isdigit.s
@@ -12,7 +12,7 @@ _isdigit:
 	bne	@L1		; Jump if no
 	tay
 	lda	__ctype,y	; Get character classification
-       	and    	#CT_DIGIT	; Mask digit bit
+	and	#CT_DIGIT	; Mask digit bit
 	rts
 
 @L1:	lda	#$00		; Return false