diff --git a/target/wxWidgets/CMakeLists.txt b/target/wxWidgets/CMakeLists.txt
index 06eddf6b..640836f9 100644
--- a/target/wxWidgets/CMakeLists.txt
+++ b/target/wxWidgets/CMakeLists.txt
@@ -184,7 +184,6 @@ install(
     ${CMAKE_CURRENT_SOURCE_DIR}/../../external_libs/SpecUtils/d3_resources/d3.v3.min.js
     ${CMAKE_CURRENT_SOURCE_DIR}/../../external_libs/SpecUtils/d3_resources/SpectrumChartD3.css
     ${CMAKE_CURRENT_SOURCE_DIR}/../../external_libs/SpecUtils/d3_resources/SpectrumChartD3.js
-    ${CMAKE_CURRENT_SOURCE_DIR}/../../external_libs/SpecUtils/d3_resources/SpectrumChartD3StandAlone.css
   DESTINATION
     "${RESOURCE_DEST_DIR}/InterSpec_resources"
 )