diff --git a/CMakeLists.txt b/CMakeLists.txt
index 442327f..2bf20e1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -200,6 +200,7 @@ if (USE_PKGCONFIG)
 			string(REPLACE "." ";" VERSION_LIST ${LIBFTDI_VERSION})
 			list(GET VERSION_LIST 0 LIBFTDI_VERSION_MAJOR)
 			list(GET VERSION_LIST 1 LIBFTDI_VERSION_MINOR)
+			string(REGEX REPLACE "[^0-9].*" "" LIBFTDI_VERSION_MINOR "${LIBFTDI_VERSION_MINOR}")
 		endif()
 	else()
 		set(LIBFTDI_LIBRARY_DIRS "")