diff --git a/.travis.yml b/.travis.yml
index 59cb0290df..58bcc54903 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,6 +39,7 @@ script:
     -DLAPACKE:BOOL=ON
     -DBUILD_TESTING=ON
     -DLAPACKE_WITH_TMG:BOOL=ON
+    -DCMAKE_Fortran_FLAGS:STRING="-fimplicit-none"
     ${SRC_DIR}
   - ctest -D ExperimentalStart
   - ctest -D ExperimentalConfigure
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 682c3c476e..345bc0efaf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -180,7 +180,7 @@ CheckLAPACKCompilerFlags()
 # Check second function
 
 include(CheckTimeFunction)
-set(TIME_FUNC NONE ${TIME_FUNC})
+set(NONE ${TIME_FUNC})
 CHECK_TIME_FUNCTION(NONE TIME_FUNC)
 CHECK_TIME_FUNCTION(INT_CPU_TIME TIME_FUNC)
 CHECK_TIME_FUNCTION(EXT_ETIME TIME_FUNC)