diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index d93015e..c89fd1c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -7,5 +7,11 @@ else()
   set(ENV_PATH_DELIMITER ":")
 endif()
 
-configure_file(ign.in ${PROJECT_BINARY_DIR}/ign)
-install (PROGRAMS ${PROJECT_BINARY_DIR}/ign DESTINATION ${BIN_INSTALL_DIR})
+set(executable_name "ign")
+
+if(WIN32)
+  set(executable_name "ign.rb")
+endif()
+
+configure_file(ign.in ${PROJECT_BINARY_DIR}/${executable_name})
+install (PROGRAMS ${PROJECT_BINARY_DIR}/${executable_name} DESTINATION ${BIN_INSTALL_DIR})