diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7cc480a..9232b31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,11 +17,13 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ### Fixed
 - Fixes [#436](https://github.com/eamodio/vscode-gitlens/issues/436) - Copy to clipboard not working
 - Fixes [#442](https://github.com/eamodio/vscode-gitlens/issues/442) - GitLens File History fails if name (or path) starts with -
+- Fixes [#440](https://github.com/eamodio/vscode-gitlens/issues/436) - Searching for commits with an empty query yields to no results anymore
 - Fixes issue where changed files count was wrong when the branch was behind the upstream
 - Fixes issue where the *GitLens File History* explorer wasn't being updated automatically for working changes
 - Fixes issue where the *Compare File with * Revision* commands in the editor toolbar would show and hide too often because of insignificant focus changes
 - Fixes issue where the scope box would be empty when there was no workspace open in the interactive settings editor
 
+
 ## [8.4.1] - 2018-06-19
 ### Fixed
 - Fixes issue with insiders builds because of the new `SymbolInformation` API changes (see [Microsoft/vscode#34968](https://github.com/Microsoft/vscode/issues/34968))
diff --git a/src/commands/showCommitSearch.ts b/src/commands/showCommitSearch.ts
index 8bb3010..1cd5a58 100644
--- a/src/commands/showCommitSearch.ts
+++ b/src/commands/showCommitSearch.ts
@@ -113,7 +113,7 @@ export class ShowCommitSearchCommand extends ActiveEditorCachedCommand {
                 break;
 
             case GitRepoSearchBy.Message:
-                searchLabel = `commits with a message matching '${args.search}'`;
+                searchLabel = args.search ? `commits with a message matching '${args.search}'` : 'all commits';
                 break;
 
             case GitRepoSearchBy.Sha:
diff --git a/src/git/shell.ts b/src/git/shell.ts
index 6bd0b75..4ce419f 100644
--- a/src/git/shell.ts
+++ b/src/git/shell.ts
@@ -115,7 +115,7 @@ export interface CommandOptions {
 }
 
 export function runCommand(command: string, args: any[], options: CommandOptions = {}) {
-    const { stdin, stdinEncoding, ...opts } = { maxBuffer: 10 * 1024 * 1024, ...options } as CommandOptions;
+    const { stdin, stdinEncoding, ...opts } = { maxBuffer: 100 * 1024 * 1024, ...options } as CommandOptions;
 
     return new Promise<string>((resolve, reject) => {
         const proc = execFile(command, args, opts, (err: Error & { code?: string | number } | null, stdout, stderr) => {
diff --git a/src/gitService.ts b/src/gitService.ts
index 277cfa0..6e2fe35 100644
--- a/src/gitService.ts
+++ b/src/gitService.ts
@@ -1132,7 +1132,7 @@ export class GitService extends Disposable {
                 searchArgs = [`--`, `${search}`];
                 break;
             case GitRepoSearchBy.Message:
-                searchArgs = [`--grep=${search}`];
+                searchArgs = search ? [`--grep=${search}`] : [];
                 break;
             case GitRepoSearchBy.Sha:
                 searchArgs = [search];