diff --git a/CMakeModules/BoostPython3.cmake b/CMakeModules/BoostPython3.cmake
index d5387d469..e708defa4 100644
--- a/CMakeModules/BoostPython3.cmake
+++ b/CMakeModules/BoostPython3.cmake
@@ -40,15 +40,18 @@ macro( find_boost_python3 boost_version python_version found_var )
             break()
         endif()
     endforeach()
-    # The following loop changes the searched name for Gentoo based distributions
-    # turns "3.4.123abc" into "3.4"
-    string( REGEX REPLACE "([0-9]+)\\.([0-9]+)\\..*" "\\1.\\2" _fbp_python_short_version ${python_version} )
-    foreach( _fbp_name ${CALAMARES_BOOST_PYTHON3_COMPONENT} python-${_fbp_python_short_version} )
-        find_package( Boost ${boost_version} QUIET COMPONENTS ${_fbp_name} )
-        string( TOUPPER ${_fbp_name} _fbp_uc_name )
-        if( Boost_${_fbp_uc_name}_FOUND )
-            set( ${found_var} ON )
-            break()
-        endif()
-    endforeach()
+
+    if (NOT ${found_var})
+        # The following loop changes the searched name for Gentoo based distributions
+        # turns "3.4.123abc" into "3.4"
+        string( REGEX REPLACE "([0-9]+)\\.([0-9]+)\\..*" "\\1.\\2" _fbp_python_short_version ${python_version} )
+        foreach( _fbp_name ${CALAMARES_BOOST_PYTHON3_COMPONENT} python-${_fbp_python_short_version} )
+            find_package( Boost ${boost_version} QUIET COMPONENTS ${_fbp_name} )
+            string( TOUPPER ${_fbp_name} _fbp_uc_name )
+            if( Boost_${_fbp_uc_name}_FOUND )
+                set( ${found_var} ON )
+                break()
+            endif()
+        endforeach()
+    endif()
 endmacro()