diff --git a/pcbnew/generators/pcb_tuning_pattern.cpp b/pcbnew/generators/pcb_tuning_pattern.cpp
index b4c9fda9b3..10251a9c77 100644
--- a/pcbnew/generators/pcb_tuning_pattern.cpp
+++ b/pcbnew/generators/pcb_tuning_pattern.cpp
@@ -1864,7 +1864,7 @@ void PCB_TUNING_PATTERN::SetProperties( const STRING_ANY_MAP& aProps )
     aProps.get_to( "single_sided", m_settings.m_singleSided );
     aProps.get_to( "side", m_settings.m_initialSide );
 
-    bool rounded;
+    bool rounded = false;
     aProps.get_to( "rounded", rounded );
     m_settings.m_cornerStyle = rounded ? PNS::MEANDER_STYLE_ROUND : PNS::MEANDER_STYLE_CHAMFER;
 
diff --git a/qa/tests/common/test_richio.cpp b/qa/tests/common/test_richio.cpp
index b8b1cd9e22..7d15fb8a8e 100644
--- a/qa/tests/common/test_richio.cpp
+++ b/qa/tests/common/test_richio.cpp
@@ -58,7 +58,13 @@ BOOST_AUTO_TEST_CASE( VPrint )
     output.clear();
 
     // Test 3: Edge case with zero characters
+    #ifdef __GNUC__
+    #pragma GCC diagnostic ignored "-Wformat-zero-length"
+    #endif
     StrPrintf( &output, "" );
+    #ifdef __GNUC__
+    #pragma GCC diagnostic warning "-Wformat-zero-length"
+    #endif
     BOOST_ASSERT( output.empty() );
 
     // Test 4: Mixing small and large strings