diff --git a/src/Makefile.am b/src/Makefile.am
index 22d8a2362a52240ecb14f61964ee45dc921be875..3b86f3e7b2517386c87b49f359d60ab875d1e386 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -28,11 +28,7 @@ AM_CXXFLAGS = \
 	-Wall \
 	-Wextra \
 	-Wno-unused-parameter \
-	-Wno-overloaded-virtual \
-	-Wno-new-returns-null \
-	-Wno-unknown-warning-option \
-	-Wno-unknown-pragmas \
-	-Wno-deprecated
+	-Wno-overloaded-virtual
 
 AM_CPPFLAGS = \
 	-DDUNE_FMatrix_WITH_CHECKING \