diff --git a/Configs/App-Shared.xcconfig b/Configs/App-Shared.xcconfig
index d3cac8b2..e2ced11f 100644
--- a/Configs/App-Shared.xcconfig
+++ b/Configs/App-Shared.xcconfig
@@ -5,6 +5,3 @@
 
 // Name of an asset catalog app icon set whose contents will be merged into the `Info.plist`.
 ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon
-
-// Implicitly include the named header. The path given should either be a project relative path or an absolute path.
-GCC_PREFIX_HEADER =
diff --git a/Configs/Test-Shared.xcconfig b/Configs/Test-Shared.xcconfig
index 3f259c96..b2c0ffa9 100644
--- a/Configs/Test-Shared.xcconfig
+++ b/Configs/Test-Shared.xcconfig
@@ -3,8 +3,5 @@
 
 #include "Module-Shared.xcconfig"
 
-// Implicitly include the named header. The path given should either be a project relative path or an absolute path.
-GCC_PREFIX_HEADER =
-
 // This is a list of paths to folders to be searched by the compiler for included or imported header files when compiling C, Objective-C, C++, or Objective-C++. Paths are delimited by whitespace, so any paths with spaces in them need to be properly quoted.
 HEADER_SEARCH_PATHS = $(inherited) "$(SRCROOT)/../SDWebImage/Private"