diff --git a/packages/jpl/CMakeLists.txt b/packages/jpl/CMakeLists.txt
index 0e8f95591..bf5542d06 100644
--- a/packages/jpl/CMakeLists.txt
+++ b/packages/jpl/CMakeLists.txt
@@ -1,19 +1,21 @@
 #CHECK: JavaLibs
 
-set (JPL_SOURCES
-  src/c/jpl.c)
 
 find_package(Java COMPONENTS Runtime Development)
 # find_package(Java COMPONENTS Development)
 # find_package(Java COMPONENTS Runtime)
 #find_package(JavaLibs)
+
+set (JPL_SOURCES
+  src/c/jpl.c)
+
 macro_log_feature (Java_Development_FOUND "Java"
     "Use Java System"
     "http://www.java.org" FALSE)
 
-if (Java_Development_FOUND)
-
   find_package(JNI)
+if (Java_Development_FOUND AND JNI_FOUND)
+
   include(UseJava)
 
   #
@@ -54,4 +56,4 @@ if (Java_Development_FOUND)
     DESTINATION ${libpl}
     )
 
-endif (Java_Development_FOUND)
+endif (Java_Development_FOUND AND JNI_FOUND)