diff --git a/src/corelib/arch/arch.pri b/src/corelib/arch/arch.pri
index c611087043..a178c24366 100644
--- a/src/corelib/arch/arch.pri
+++ b/src/corelib/arch/arch.pri
@@ -16,7 +16,7 @@ HEADERS += \
     arch/qatomic_s390.h \
     arch/qatomic_sh4a.h \
     arch/qatomic_sparc.h \
-    arch/qatomic_x86_64.h \
+    arch/qatomic_x86.h \
     arch/qatomic_gcc.h \
     arch/qatomic_cxx11.h
 
diff --git a/src/corelib/arch/qatomic_x86_64.h b/src/corelib/arch/qatomic_x86.h
similarity index 100%
rename from src/corelib/arch/qatomic_x86_64.h
rename to src/corelib/arch/qatomic_x86.h
diff --git a/src/corelib/thread/qbasicatomic.h b/src/corelib/thread/qbasicatomic.h
index 01a69dbd8b..8bac8d8a5f 100644
--- a/src/corelib/thread/qbasicatomic.h
+++ b/src/corelib/thread/qbasicatomic.h
@@ -82,8 +82,8 @@
 #  include "QtCore/qatomic_sparc.h"
 #elif defined(Q_PROCESSOR_X86_32)
 #  include <QtCore/qatomic_i386.h>
-#elif defined(Q_PROCESSOR_X86_64)
-#  include <QtCore/qatomic_x86_64.h>
+#elif defined(Q_PROCESSOR_X86)
+#  include <QtCore/qatomic_x86.h>
 
 // Fallback compiler dependent implementation
 #elif defined(Q_COMPILER_ATOMICS) && defined(Q_COMPILER_CONSTEXPR)