diff --git a/CMakeLists.txt b/CMakeLists.txt
index d648a07650356a72040c5c74b728807110f907a6..b1c5fe4edc30d774da0278edcf9b751575d1d9a0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,6 +16,7 @@ if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
   find_package(Numer_Rec_95 REQUIRED CONFIG)
   find_package(EZMPI REQUIRED CONFIG)
   find_package(GPC_F REQUIRED CONFIG)
+  find_package(GPC REQUIRED CONFIG)
 endif()
 
 find_path(fortrangis_INCLUDE_DIR shapelib.mod REQUIRED)