diff --git a/coordinates/CMakeLists.txt b/coordinates/CMakeLists.txt
new file mode 100644
index 00000000..a1fa1e52
--- /dev/null
+++ b/coordinates/CMakeLists.txt
@@ -0,0 +1,5 @@
+target_sources(${LIB_FSFW_NAME} 
+	PRIVATE 
+		CoordinateTransformations.cpp
+		Sgp4Propagator.cpp
+)
\ No newline at end of file
diff --git a/coordinates/Sgp4Propagator.h b/coordinates/Sgp4Propagator.h
index 3949547e..f813c6f4 100644
--- a/coordinates/Sgp4Propagator.h
+++ b/coordinates/Sgp4Propagator.h
@@ -1,7 +1,9 @@
 #ifndef SGP4PROPAGATOR_H_
 #define SGP4PROPAGATOR_H_
 
+#ifndef WIN32
 #include <sys/time.h>
+#endif
 #include "../contrib/sgp4/sgp4unit.h"
 #include "../returnvalues/HasReturnvaluesIF.h"