diff --git a/NeoVimServer/NeoVimBuffer.h b/NeoVimServer/NeoVimBuffer.h
index 88673f71..dfe9cce8 100644
--- a/NeoVimServer/NeoVimBuffer.h
+++ b/NeoVimServer/NeoVimBuffer.h
@@ -28,3 +28,11 @@ NS_ASSUME_NONNULL_BEGIN
 @end
 
 NS_ASSUME_NONNULL_END
+
+@interface NeoVimBuffer (Equality)
+
+- (BOOL)isEqual:(id _Nullable)other;
+- (BOOL)isEqualToBuffer:(NeoVimBuffer * _Nullable)buffer;
+- (NSUInteger)hash;
+
+@end
diff --git a/NeoVimServer/NeoVimBuffer.m b/NeoVimServer/NeoVimBuffer.m
index f8f92ec8..c65a2e9c 100644
--- a/NeoVimServer/NeoVimBuffer.m
+++ b/NeoVimServer/NeoVimBuffer.m
@@ -37,6 +37,29 @@
   return self;
 }
 
+- (BOOL)isEqual:(id)other {
+  if (other == self)
+    return YES;
+  if (!other || ![[other class] isEqual:[self class]])
+    return NO;
+
+  return [self isEqualToBuffer:other];
+}
+
+- (BOOL)isEqualToBuffer:(NeoVimBuffer *)buffer {
+  if (self == buffer)
+    return YES;
+  if (buffer == nil)
+    return NO;
+  if (self.handle != buffer.handle)
+    return NO;
+  return YES;
+}
+
+- (NSUInteger)hash {
+  return (NSUInteger) self.handle;
+}
+
 - (void)encodeWithCoder:(NSCoder *)coder {
   [coder encodeObject:@(self.handle) forKey:@"handle"];
   [coder encodeObject:self.fileName forKey:@"fileName"];
diff --git a/SwiftNeoVim/NeoVimObjectsExtensions.swift b/SwiftNeoVim/NeoVimObjectsExtensions.swift
new file mode 100644
index 00000000..08bc6730
--- /dev/null
+++ b/SwiftNeoVim/NeoVimObjectsExtensions.swift
@@ -0,0 +1,14 @@
+/**
+ * Tae Won Ha - http://taewon.de - @hataewon
+ * See LICENSE
+ */
+
+import Foundation
+
+
+extension NeoVimTab {
+
+  public func allBuffers() -> [NeoVimBuffer] {
+    return Array(Set(self.windows.map { $0.buffer }))
+  }
+}
diff --git a/SwiftNeoVim/NeoVimView.swift b/SwiftNeoVim/NeoVimView.swift
index d6652cfb..061732f8 100644
--- a/SwiftNeoVim/NeoVimView.swift
+++ b/SwiftNeoVim/NeoVimView.swift
@@ -181,7 +181,8 @@ public class NeoVimView: NSView, NSUserInterfaceValidations {
 
   @IBAction public func debug1(_ sender: AnyObject!) {
     NSLog("DEBUG 1 - Start")
-    NSLog("\(self.agent.tabs())")
+    let buffers = self.agent.tabs().map { $0.allBuffers() }.flatMap { $0 }
+    NSLog("\(Set(buffers))")
     NSLog("DEBUG 1 - End")
   }
 }
diff --git a/VimR.xcodeproj/project.pbxproj b/VimR.xcodeproj/project.pbxproj
index 4bbfbe2c..95c5390b 100644
--- a/VimR.xcodeproj/project.pbxproj
+++ b/VimR.xcodeproj/project.pbxproj
@@ -85,6 +85,7 @@
 		4B6A709C1D6507A000E12030 /* Nimble.framework in CopyFiles */ = {isa = PBXBuildFile; fileRef = 4B56F29B1D29926600C1F92E /* Nimble.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		4B6B0A781DA2A1A500212D6D /* FileOutlineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B6B0A771DA2A1A500212D6D /* FileOutlineView.swift */; };
 		4B854A1D1D31447C00E08DE1 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B854A1C1D31447C00E08DE1 /* main.m */; };
+		4B8AC0441DBCB3A2007CCC9B /* NeoVimObjectsExtensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B8AC0431DBCB3A1007CCC9B /* NeoVimObjectsExtensions.swift */; };
 		4B97E2CC1D33F53D00FC0660 /* MainWindow.xib in Resources */ = {isa = PBXBuildFile; fileRef = 4B97E2CE1D33F53D00FC0660 /* MainWindow.xib */; };
 		4B9A15241D2993DA009F9F67 /* Nimble.framework in CopyFiles */ = {isa = PBXBuildFile; fileRef = 4B56F29B1D29926600C1F92E /* Nimble.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		4B9A15261D2993DF009F9F67 /* SwiftNeoVim.framework in CopyFiles */ = {isa = PBXBuildFile; fileRef = 4B2A2BF71D0351810074CE9A /* SwiftNeoVim.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
@@ -312,6 +313,7 @@
 		4B6B0A771DA2A1A500212D6D /* FileOutlineView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FileOutlineView.swift; sourceTree = "<group>"; };
 		4B854A1A1D31447C00E08DE1 /* NeoVimServer */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = NeoVimServer; sourceTree = BUILT_PRODUCTS_DIR; };
 		4B854A1C1D31447C00E08DE1 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
+		4B8AC0431DBCB3A1007CCC9B /* NeoVimObjectsExtensions.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NeoVimObjectsExtensions.swift; sourceTree = "<group>"; };
 		4B97E2CD1D33F53D00FC0660 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainWindow.xib; sourceTree = "<group>"; };
 		4BAD81D41D80B5D8004F91AE /* OpenQuicklyFileViewRow.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OpenQuicklyFileViewRow.swift; sourceTree = "<group>"; };
 		4BAD84E71D7CA8FC00A79CC3 /* OpenQuicklyFilterOperation.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OpenQuicklyFilterOperation.swift; sourceTree = "<group>"; };
@@ -518,6 +520,7 @@
 				4B1BB3521D16C5E500CA4FEF /* InputTestView.swift */,
 				4BEE79141D16D2100012EDAA /* DispatchUtils.swift */,
 				4BF6E29B1D34153C0053FA76 /* KeyUtils.swift */,
+				4B8AC0431DBCB3A1007CCC9B /* NeoVimObjectsExtensions.swift */,
 			);
 			path = SwiftNeoVim;
 			sourceTree = "<group>";
@@ -1008,6 +1011,7 @@
 				4BDF64251D08CAB000D47E1D /* MMCoreTextView.m in Sources */,
 				4BDD058C1DBBC50000D1B405 /* NeoVimWindow.m in Sources */,
 				1929BEB90DCDAF7A2B68C886 /* ColorUtils.swift in Sources */,
+				4B8AC0441DBCB3A2007CCC9B /* NeoVimObjectsExtensions.swift in Sources */,
 				4B4192181D0C52D700A0BEB2 /* Grid.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;