diff --git a/plugins/channel/demodbfm/CMakeLists.txt b/plugins/channel/demodbfm/CMakeLists.txt
index eb80adde7..cfd0e3f28 100644
--- a/plugins/channel/demodbfm/CMakeLists.txt
+++ b/plugins/channel/demodbfm/CMakeLists.txt
@@ -32,8 +32,6 @@ include_directories(
 	${OPENGL_INCLUDE_DIR}
 )
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-
 #include(${QT_USE_FILE})
 add_definitions(${QT_DEFINITIONS})
 add_definitions(-DQT_PLUGIN)
diff --git a/plugins/channel/demodbfm/bfmdemod.cpp b/plugins/channel/demodbfm/bfmdemod.cpp
index 0c8d4bd01..da3c014fb 100644
--- a/plugins/channel/demodbfm/bfmdemod.cpp
+++ b/plugins/channel/demodbfm/bfmdemod.cpp
@@ -29,6 +29,8 @@
 
 MESSAGE_CLASS_DEFINITION(BFMDemod::MsgConfigureBFMDemod, Message)
 
+const Real BFMDemod::default_deemphasis = 50.0; // 50 us
+
 BFMDemod::BFMDemod(SampleSink* sampleSink, RDSParser *rdsParser) :
 	m_sampleSink(sampleSink),
 	m_rdsParser(rdsParser),
diff --git a/plugins/channel/demodbfm/bfmdemod.h b/plugins/channel/demodbfm/bfmdemod.h
index 3a2c7a594..4bf0ce326 100644
--- a/plugins/channel/demodbfm/bfmdemod.h
+++ b/plugins/channel/demodbfm/bfmdemod.h
@@ -214,7 +214,7 @@ private:
 
 	LowPassFilterRC m_deemphasisFilterX;
 	LowPassFilterRC m_deemphasisFilterY;
-    static const Real default_deemphasis = 50.0; // 50 us
+    static const Real default_deemphasis;
 
 	Real m_fmExcursion;
 	static const int default_excursion = 750000; // +/- 75 kHz