diff --git a/platform/macos/macos.xcodeproj/project.pbxproj b/platform/macos/macos.xcodeproj/project.pbxproj
index 92a130594..728e15ea9 100644
--- a/platform/macos/macos.xcodeproj/project.pbxproj
+++ b/platform/macos/macos.xcodeproj/project.pbxproj
@@ -250,7 +250,7 @@
 		35C5D8441D6DD66D00E95907 /* NSComparisonPredicate+MGLAdditions.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = "NSComparisonPredicate+MGLAdditions.mm"; sourceTree = "<group>"; };
 		35C5D8451D6DD66D00E95907 /* NSCompoundPredicate+MGLAdditions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSCompoundPredicate+MGLAdditions.h"; sourceTree = "<group>"; };
 		35C5D8461D6DD66D00E95907 /* NSCompoundPredicate+MGLAdditions.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = "NSCompoundPredicate+MGLAdditions.mm"; sourceTree = "<group>"; };
-		35C5D84B1D6DD75B00E95907 /* MGLFilterTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = MGLFilterTests.m; path = ../../darwin/test/MGLFilterTests.m; sourceTree = "<group>"; };
+		35C5D84B1D6DD75B00E95907 /* MGLFilterTests.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = MGLFilterTests.mm; sourceTree = "<group>"; };
 		35D65C581D65AD5500722C23 /* NSDate+MGLAdditions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSDate+MGLAdditions.h"; sourceTree = "<group>"; };
 		35D65C591D65AD5500722C23 /* NSDate+MGLAdditions.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = "NSDate+MGLAdditions.mm"; sourceTree = "<group>"; };
 		52BECB091CC5A26F009CD791 /* SystemConfiguration.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = SystemConfiguration.framework; path = System/Library/Frameworks/SystemConfiguration.framework; sourceTree = SDKROOT; };
@@ -627,7 +627,7 @@
 			isa = PBXGroup;
 			children = (
 				DA8F257C1D51C5F40010E6B5 /* Layers */,
-				35C5D84B1D6DD75B00E95907 /* MGLFilterTests.m */,
+				35C5D84B1D6DD75B00E95907 /* MGLFilterTests.mm */,
 			);
 			name = Styling;
 			path = ../../darwin/test;