diff --git a/CMakeLists.txt b/CMakeLists.txt
index 68c7f382..496779ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,7 @@ if ( CCACHE_FOUND )
 	set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
 endif(CCACHE_FOUND)
 
+set(Python_ADDITIONAL_VERSIONS 3.5)
 find_package( PythonInterp 3.5 REQUIRED )
 
 # Read version from version.json
diff --git a/libsrc/effectengine/CMakeLists.txt b/libsrc/effectengine/CMakeLists.txt
index 5fb38e1a..24f1e059 100644
--- a/libsrc/effectengine/CMakeLists.txt
+++ b/libsrc/effectengine/CMakeLists.txt
@@ -1,3 +1,4 @@
+set(Python_ADDITIONAL_VERSIONS 3.5)
 find_package(PythonLibs 3.5 REQUIRED)
 
 # Include the python directory. Also include the parent (which is for example /usr/include)