diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4bfa3400..96a47e16 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -33,6 +33,9 @@ target_include_directories (sfizz_static PUBLIC external)
 target_link_libraries (sfizz_static PUBLIC absl::strings absl::span)
 target_link_libraries (sfizz_static PRIVATE sfizz_parser absl::flat_hash_map Threads::Threads sfizz-sndfile sfizz-pugixml)
 set_target_properties (sfizz_static PROPERTIES OUTPUT_NAME sfizz PUBLIC_HEADER "sfizz.h;sfizz.hpp")
+if (WIN32)
+    target_compile_definitions (sfizz_static PRIVATE _USE_MATH_DEFINES)
+endif()
 
 if (NOT MSVC)
     install (TARGETS sfizz_static
@@ -61,6 +64,9 @@ if (SFIZZ_SHARED)
     target_include_directories (sfizz_shared PRIVATE .)
     target_include_directories (sfizz_shared PRIVATE external)
     target_link_libraries (sfizz_shared PRIVATE absl::strings absl::span sfizz_parser absl::flat_hash_map Threads::Threads sfizz-sndfile sfizz-pugixml)
+    if (WIN32)
+        target_compile_definitions (sfizz_shared PRIVATE _USE_MATH_DEFINES)
+    endif()
     target_compile_definitions(sfizz_shared PRIVATE SFIZZ_EXPORT_SYMBOLS)
     set_target_properties (sfizz_shared PROPERTIES OUTPUT_NAME sfizz PUBLIC_HEADER "sfizz.h;sfizz.hpp")
     set_property (TARGET sfizz_shared PROPERTY SOVERSION ${PROJECT_VERSION_MAJOR})