diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f9d61589e3..326d4f02ac5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- fix: SpanProtocol add setData for Swift (#1305)
+
 ## 7.2.7
 
 - fix: Remove Trace Headers below iOS 14.0 (#1309)
diff --git a/Sources/Sentry/Public/SentrySpanProtocol.h b/Sources/Sentry/Public/SentrySpanProtocol.h
index cc3e400f409..bcee12b0e2c 100644
--- a/Sources/Sentry/Public/SentrySpanProtocol.h
+++ b/Sources/Sentry/Public/SentrySpanProtocol.h
@@ -62,10 +62,17 @@ NS_SWIFT_NAME(Span)
     NS_SWIFT_NAME(startChild(operation:description:));
 
 /**
- * Sets an extra.
+ * Sets a value to data.
  */
 - (void)setDataValue:(nullable id)value
-              forKey:(NSString *)key NS_SWIFT_NAME(setExtra(value:key:));
+              forKey:(NSString *)key NS_SWIFT_NAME(setData(value:key:));
+
+/**
+ * Use setDataValue instead. This method calls setDataValue, was added by mistake, and will be
+ * deprecated in a future version.
+ */
+- (void)setExtraValue:(nullable id)value
+               forKey:(NSString *)key NS_SWIFT_NAME(setExtra(value:key:));
 
 /**
  * Removes a data value.
diff --git a/Sources/Sentry/SentrySpan.m b/Sources/Sentry/SentrySpan.m
index c59c0f7fd89..0449b77c56f 100644
--- a/Sources/Sentry/SentrySpan.m
+++ b/Sources/Sentry/SentrySpan.m
@@ -57,6 +57,11 @@ - (void)setDataValue:(nullable id)value forKey:(NSString *)key
     }
 }
 
+- (void)setExtraValue:(nullable id)value forKey:(NSString *)key
+{
+    [self setDataValue:value forKey:key];
+}
+
 - (void)removeDataForKey:(NSString *)key
 {
     @synchronized(_extras) {
diff --git a/Sources/Sentry/SentryTracer.m b/Sources/Sentry/SentryTracer.m
index 379a1ee4f81..e3265f94964 100644
--- a/Sources/Sentry/SentryTracer.m
+++ b/Sources/Sentry/SentryTracer.m
@@ -202,6 +202,11 @@ - (void)setDataValue:(id)value forKey:(NSString *)key
     [self.rootSpan setDataValue:value forKey:key];
 }
 
+- (void)setExtraValue:(nullable id)value forKey:(NSString *)key
+{
+    [self setDataValue:value forKey:key];
+}
+
 - (void)removeDataForKey:(NSString *)key
 {
     [self.rootSpan removeDataForKey:key];
diff --git a/Tests/SentryTests/Performance/SentryTracerTests.swift b/Tests/SentryTests/Performance/SentryTracerTests.swift
index a95c7e79056..cec8427576d 100644
--- a/Tests/SentryTests/Performance/SentryTracerTests.swift
+++ b/Tests/SentryTests/Performance/SentryTracerTests.swift
@@ -353,6 +353,13 @@ class SentryTracerTests: XCTestCase {
     }
     #endif
     
+    func testSetExtra_ForwardsToSetData() {
+        let sut = fixture.getSut()
+        sut.setExtra(value: 0, key: "key")
+        
+        XCTAssertEqual(["key": 0], sut.data as! [String: Int])
+    }
+    
     private func getSerializedTransaction() -> [String: Any] {
         guard let transaction = fixture.hub.capturedEventsWithScopes.first?.event else {
             fatalError("Event must not be nil.")
diff --git a/Tests/SentryTests/SentrySpanTests.swift b/Tests/SentryTests/SentrySpanTests.swift
index 3e36fb30d30..7a7cae9aba5 100644
--- a/Tests/SentryTests/SentrySpanTests.swift
+++ b/Tests/SentryTests/SentrySpanTests.swift
@@ -217,6 +217,13 @@ class SentrySpanTests: XCTestCase {
         XCTAssertEqual(header.value(), "\(span.context.traceId)-\(span.context.spanId)")
     }
     
+    func testSetExtra_ForwardsToSetData() {
+        let sut = SentrySpan(context: SpanContext(operation: "test"))
+        sut.setExtra(value: 0, key: "key")
+        
+        XCTAssertEqual(["key": 0], sut.data as! [String: Int])
+    }
+    
     @available(tvOS 10.0, *)
     @available(OSX 10.12, *)
     @available(iOS 10.0, *)