diff --git a/compile.mk b/compile.mk
index f1213178..e5064aed 100644
--- a/compile.mk
+++ b/compile.mk
@@ -14,13 +14,11 @@ FLAGS += -MMD -MP
 # Debugger symbols. These are removed with `strip`.
 FLAGS += -g
 # Optimization
-FLAGS += -O3 -march=core2 -funsafe-math-optimizations
+FLAGS += -O3 -march=nehalem -funsafe-math-optimizations
 # Warnings
 FLAGS += -Wall -Wextra -Wno-unused-parameter
 # C++ standard
 CXXFLAGS += -std=c++11
-# C standard
-CFLAGS += -std=c11
 
 # Architecture-independent flags
 ifdef ARCH_LIN
diff --git a/dep.mk b/dep.mk
index 7a866cab..1d541269 100644
--- a/dep.mk
+++ b/dep.mk
@@ -5,7 +5,7 @@ DEP_LOCAL ?= dep
 $(shell mkdir -p $(DEP_LOCAL))
 DEP_PATH := $(abspath $(DEP_LOCAL))
 
-DEP_FLAGS += -g -O3 -march=nocona
+DEP_FLAGS += -g -O3 -march=nehalem
 # This is needed for Rack for DAWs.
 # Static libs don't usually compiled with -fPIC, but since we're including them in a shared library, it's needed.
 DEP_FLAGS += -fPIC