diff --git a/src/devtools/views/Profiler/Profiler.css b/src/devtools/views/Profiler/Profiler.css
index 3bf17ac9af..ce55714c18 100644
--- a/src/devtools/views/Profiler/Profiler.css
+++ b/src/devtools/views/Profiler/Profiler.css
@@ -22,6 +22,7 @@
   flex: 1 1 100px;
   max-width: 300px;
   border-left: 1px solid var(--color-border);
+  border-top: 1px solid var(--color-border);
 }
 
 .Content {
diff --git a/src/devtools/views/Profiler/SidebarCommitInfo.css b/src/devtools/views/Profiler/SidebarCommitInfo.css
index 62991da498..38a4c7f7d0 100644
--- a/src/devtools/views/Profiler/SidebarCommitInfo.css
+++ b/src/devtools/views/Profiler/SidebarCommitInfo.css
@@ -4,13 +4,12 @@
   flex: 0 0 auto;
   display: flex;
   align-items: center;
-  border-bottom: 1px solid var(--color-border);
-  border-top: 1px solid var(--color-border);
 }
 
 .Content {
   padding: 0.5rem;
   user-select: none;
+  border-top: 1px solid var(--color-border);
 }
 
 .List,
@@ -45,3 +44,11 @@
   font-family: var(--font-family-monospace);
   font-size: var(--font-size-monospace-normal);
 }
+
+.NothingSelected {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  color: var(--color-dim);
+}
diff --git a/src/devtools/views/Profiler/SidebarCommitInfo.js b/src/devtools/views/Profiler/SidebarCommitInfo.js
index aefae459f1..cefbb8effc 100644
--- a/src/devtools/views/Profiler/SidebarCommitInfo.js
+++ b/src/devtools/views/Profiler/SidebarCommitInfo.js
@@ -21,7 +21,7 @@ export default function SidebarCommitInfo(_: Props) {
   const { profilingCache } = useContext(StoreContext);
 
   if (selectedCommitIndex === null) {
-    return null; // TODO (profiling) Use a better UI
+    return <div className={styles.NothingSelected}>Nothing selected</div>;
   }
 
   const { commitDurations, commitTimes } = profilingCache.ProfilingSummary.read(
diff --git a/src/devtools/views/Profiler/SidebarInteractions.css b/src/devtools/views/Profiler/SidebarInteractions.css
index f2a8432c7b..99327dbb9c 100644
--- a/src/devtools/views/Profiler/SidebarInteractions.css
+++ b/src/devtools/views/Profiler/SidebarInteractions.css
@@ -4,13 +4,12 @@
   flex: 0 0 auto;
   display: flex;
   align-items: center;
-  border-bottom: 1px solid var(--color-border);
-  border-top: 1px solid var(--color-border);
 }
 
 .Content {
   padding: 0.5rem;
   user-select: none;
+  border-top: 1px solid var(--color-border);
 }
 
 .Name {
@@ -21,7 +20,6 @@
 }
 
 .NothingSelected {
-  border-top: 1px solid var(--color-border);
   display: flex;
   align-items: center;
   justify-content: center;