diff --git a/AvoidCrash/NSMutableAttributedString+AvoidCrash.m b/AvoidCrash/NSMutableAttributedString+AvoidCrash.m
index dbfc103..8b043d3 100644
--- a/AvoidCrash/NSMutableAttributedString+AvoidCrash.m
+++ b/AvoidCrash/NSMutableAttributedString+AvoidCrash.m
@@ -24,6 +24,9 @@ + (void)avoidCrashExchangeMethod {
         
         //initWithString:attributes:
         [AvoidCrash exchangeInstanceMethod:NSConcreteMutableAttributedString method1Sel:@selector(initWithString:attributes:) method2Sel:@selector(avoidCrashInitWithString:attributes:)];
+        
+        //replaceCharactersInRange:withString:
+        [AvoidCrash exchangeInstanceMethod:NSConcreteMutableAttributedString method1Sel:@selector(replaceCharactersInRange:withString:) method2Sel:@selector(avoidCrashReplaceCharactersInRange:withString:)];
     });
 }
 
@@ -71,4 +74,25 @@ - (instancetype)avoidCrashInitWithString:(NSString *)str attributes:(NSDictionar
 }
 
 
+//=================================================================
+//               replaceCharactersInRange:withString:
+//=================================================================
+#pragma mark - replaceCharactersInRange:withString:
+
+
+- (void)avoidCrashReplaceCharactersInRange:(NSRange)range withString:(NSString *)aString {
+    
+    @try {
+        [self avoidCrashReplaceCharactersInRange:range withString:aString];
+    } @catch (NSException *exception) {
+        
+        NSString *defaultToDo = AvoidCrashDefaultReturnNil;
+        [AvoidCrash noteErrorWithException:exception defaultToDo:defaultToDo];
+        
+    } @finally {
+        
+    }
+}
+
+
 @end
diff --git a/AvoidCrashDemo/AvoidCrashDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/AvoidCrashDemo/AvoidCrashDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/AvoidCrashDemo/AvoidCrashDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>