diff --git a/cmake/SfizzConfig.cmake b/cmake/SfizzConfig.cmake
index 8dba5719..7b7d1a37 100644
--- a/cmake/SfizzConfig.cmake
+++ b/cmake/SfizzConfig.cmake
@@ -28,6 +28,11 @@ elseif (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
     add_compile_options(/Zc:__cplusplus)
     set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
 endif()
+if (CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$")
+    if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+        add_compile_options(-msse2)
+    endif()
+endif()
 
 add_library(sfizz-sndfile INTERFACE)
 
diff --git a/src/external/atomic_queue/defs.h b/src/external/atomic_queue/defs.h
index 0207032c..1f721f6c 100644
--- a/src/external/atomic_queue/defs.h
+++ b/src/external/atomic_queue/defs.h
@@ -6,7 +6,8 @@
 
 #include <atomic>
 
-#if defined(__x86_64__) || defined(_M_X64)
+#if defined(__x86_64__) || defined(_M_X64) || \
+    defined(__i386__) || defined(_M_IX86)
 #include <emmintrin.h>
 namespace atomic_queue {
 constexpr int CACHE_LINE_SIZE = 64;