diff --git a/doc/ca65.sgml b/doc/ca65.sgml
index debbc4cd0..72679f323 100644
--- a/doc/ca65.sgml
+++ b/doc/ca65.sgml
@@ -908,7 +908,7 @@ if you want to access the "other" symbol <tt/bar/, you would have to write:
         .endscope
 </verb></tscreen>
 
-       
+
 <sect>Address sizes<label id="address-sizes"><p>
 
 
@@ -2075,6 +2075,16 @@ Here's a list of all control commands and a description, what they do:
     removing the lines with the assignments may also be an option when porting
     code written for older assemblers).
 
+  <tag><tt>missing_char_term</tt></tag>
+
+    Accept single quoted character constants where the terminating quote is
+    missing.
+    <tscreen><verb>
+        lda     #'a
+    </verb></tscreen>
+    <bf/Note:/ This does not work in conjunction with <tt/.FEATURE
+    loose_string_term/, since in this case the input would be ambigous.
+
   </descrip>
 
   It is also possible to specify features on the command line using the
diff --git a/src/ca65/feature.c b/src/ca65/feature.c
index b19c0a07d..3983270ec 100644
--- a/src/ca65/feature.c
+++ b/src/ca65/feature.c
@@ -6,10 +6,10 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2000-2002 Ullrich von Bassewitz                                       */
-/*               Wacholderweg 14                                             */
-/*               D-70597 Stuttgart                                           */
-/* EMail:        uz@musoftware.de                                            */
+/* (C) 2000-2003 Ullrich von Bassewitz                                       */
+/*               Römerstraße 52                                              */
+/*               D-70794 Filderstadt                                         */
+/* EMail:        uz@cc65.org                                                 */
 /*                                                                           */
 /*                                                                           */
 /* This software is provided 'as-is', without any expressed or implied       */
@@ -57,6 +57,7 @@ static const char* FeatureKeys[FEAT_COUNT] = {
     "dollar_in_identifiers",
     "leading_dot_in_identifiers",
     "pc_assignment",
+    "missing_char_term",
 };
 
 
@@ -107,6 +108,7 @@ feature_t SetFeature (const char* Key)
      	case FEAT_DOLLAR_IN_IDENTIFIERS:      DollarInIdents	= 1;	break;
        	case FEAT_LEADING_DOT_IN_IDENTIFIERS: LeadingDotInIdents= 1;    break;
      	case FEAT_PC_ASSIGNMENT:	      PCAssignment	= 1;	break;
+        case FEAT_MISSING_CHAR_TERM:          MissingCharTerm   = 1;    break;
 	default:     			 /* Keep gcc silent */	        break;
     }
 
diff --git a/src/ca65/feature.h b/src/ca65/feature.h
index 2766396dc..df91e77f1 100644
--- a/src/ca65/feature.h
+++ b/src/ca65/feature.h
@@ -6,10 +6,10 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2000-2002 Ullrich von Bassewitz                                       */
-/*               Wacholderweg 14                                             */
-/*               D-70597 Stuttgart                                           */
-/* EMail:        uz@musoftware.de                                            */
+/* (C) 2000-2003 Ullrich von Bassewitz                                       */
+/*               Römerstraße 52                                              */
+/*               D-70794 Filderstadt                                         */
+/* EMail:        uz@cc65.org                                                 */
 /*                                                                           */
 /*                                                                           */
 /* This software is provided 'as-is', without any expressed or implied       */
@@ -54,6 +54,7 @@ typedef enum {
     FEAT_DOLLAR_IN_IDENTIFIERS,
     FEAT_LEADING_DOT_IN_IDENTIFIERS,
     FEAT_PC_ASSIGNMENT,
+    FEAT_MISSING_CHAR_TERM,
 
     /* Special value: Number of features available */
     FEAT_COUNT
diff --git a/src/ca65/global.c b/src/ca65/global.c
index 8da92298f..f9d29bea9 100644
--- a/src/ca65/global.c
+++ b/src/ca65/global.c
@@ -74,6 +74,7 @@ unsigned char AtInIdents         = 0;	/* Allow '@' in identifiers */
 unsigned char DollarInIdents     = 0;   /* Allow '$' in identifiers */
 unsigned char LeadingDotInIdents = 0;   /* Allow '.' to start an identifier */
 unsigned char PCAssignment       = 0;	/* Allow "* = $XXX" or "$ = $XXX" */
+unsigned char MissingCharTerm    = 0;   /* Allow lda #'a (no closing term) */
 
 /* Misc stuff */
 const char Copyright[]           = "(C) Copyright 1998-2004 Ullrich von Bassewitz";
diff --git a/src/ca65/global.h b/src/ca65/global.h
index 68670ad9b..f75d12335 100644
--- a/src/ca65/global.h
+++ b/src/ca65/global.h
@@ -71,6 +71,7 @@ extern unsigned char    AtInIdents;    	    /* Allow '@' in identifiers */
 extern unsigned char   	DollarInIdents;	    /* Allow '$' in identifiers */
 extern unsigned char    LeadingDotInIdents; /* Allow '.' to start an identifier */
 extern unsigned char   	PCAssignment;  	    /* Allow "* = $XXX" or "$ = $XXX" */
+extern unsigned char    MissingCharTerm;    /* Allow lda #'a (no closing term) */
 
 /* Misc stuff */
 extern const char       Copyright[];        /* Copyright string */
diff --git a/src/ca65/scanner.c b/src/ca65/scanner.c
index c33edcb38..6c0e06d9c 100644
--- a/src/ca65/scanner.c
+++ b/src/ca65/scanner.c
@@ -6,7 +6,7 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 1998-2003 Ullrich von Bassewitz                                       */
+/* (C) 1998-2004 Ullrich von Bassewitz                                       */
 /*               Römerstraße 52                                              */
 /*               D-70794 Filderstadt                                         */
 /* EMail:        uz@cc65.org                                                 */
@@ -469,8 +469,8 @@ static void NextChar (void)
       	    /* End of current line reached, read next line */
       	    if (fgets (IFile->Line, sizeof (IFile->Line), IFile->F) == 0) {
       	       	/* End of file. Add an empty line to the listing. This is a
-      		 * small hack needed to keep the PC output in sync.
-      		 */
+      	    	 * small hack needed to keep the PC output in sync.
+      	    	 */
       	      	NewListingLine ("", IFile->Pos.Name, ICount);
       	       	C = EOF;
       	       	return;
@@ -617,7 +617,7 @@ static unsigned ReadStringConst (int StringTerm)
 
     /* Return the length of the string */
     return I;
-}
+}               
 
 
 
@@ -1043,7 +1043,7 @@ CharAgain:
 	    } else {
 		/* Always a character constant */
 	     	NextChar ();
-	     	if (C == '\n' || C == EOF) {
+	     	if (C == EOF || IsControl (C)) {
 	     	    Error ("Illegal character constant");
 	     	    goto CharAgain;
 	     	}
@@ -1051,7 +1051,9 @@ CharAgain:
 	     	Tok = TOK_CHARCON;
 	     	NextChar ();
 	     	if (C != '\'') {
-	     	    Error ("Illegal character constant");
+                    if (!MissingCharTerm) {
+                        Error ("Illegal character constant");
+                    }
 	     	} else {
 	     	    NextChar ();
 	     	}