diff --git a/slsDetectorGui/CMakeLists.txt b/slsDetectorGui/CMakeLists.txt
index b0f9e79e4..b06596699 100755
--- a/slsDetectorGui/CMakeLists.txt
+++ b/slsDetectorGui/CMakeLists.txt
@@ -4,10 +4,10 @@ find_package(PNG REQUIRED)
 find_package(ZLIB REQUIRED)
 
 set(SOURCES
-    slsDetectorPlotting/src/SlsQt1DPlot.cxx
-    slsDetectorPlotting/src/SlsQt1DZoomer.cxx
-    slsDetectorPlotting/src/SlsQt2DHist.cxx
-    slsDetectorPlotting/src/SlsQt2DPlot.cxx
+    slsDetectorPlotting/src/SlsQt1DPlot.cpp
+    slsDetectorPlotting/src/SlsQt1DZoomer.cpp
+    slsDetectorPlotting/src/SlsQt2DHist.cpp
+    slsDetectorPlotting/src/SlsQt2DPlot.cpp
     src/qDetectorMain.cpp
     src/qDrawPlot.cpp
     src/qCloneWidget.cpp
diff --git a/slsDetectorGui/slsDetectorPlotting/src/SlsQt1DPlot.cxx b/slsDetectorGui/slsDetectorPlotting/src/SlsQt1DPlot.cpp
similarity index 100%
rename from slsDetectorGui/slsDetectorPlotting/src/SlsQt1DPlot.cxx
rename to slsDetectorGui/slsDetectorPlotting/src/SlsQt1DPlot.cpp
diff --git a/slsDetectorGui/slsDetectorPlotting/src/SlsQt1DZoomer.cxx b/slsDetectorGui/slsDetectorPlotting/src/SlsQt1DZoomer.cpp
similarity index 100%
rename from slsDetectorGui/slsDetectorPlotting/src/SlsQt1DZoomer.cxx
rename to slsDetectorGui/slsDetectorPlotting/src/SlsQt1DZoomer.cpp
diff --git a/slsDetectorGui/slsDetectorPlotting/src/SlsQt2DHist.cxx b/slsDetectorGui/slsDetectorPlotting/src/SlsQt2DHist.cpp
similarity index 100%
rename from slsDetectorGui/slsDetectorPlotting/src/SlsQt2DHist.cxx
rename to slsDetectorGui/slsDetectorPlotting/src/SlsQt2DHist.cpp
diff --git a/slsDetectorGui/slsDetectorPlotting/src/SlsQt2DPlot.cxx b/slsDetectorGui/slsDetectorPlotting/src/SlsQt2DPlot.cpp
similarity index 100%
rename from slsDetectorGui/slsDetectorPlotting/src/SlsQt2DPlot.cxx
rename to slsDetectorGui/slsDetectorPlotting/src/SlsQt2DPlot.cpp