diff --git a/src/base/build.mak b/src/base/build.mak
index 132cdecb..24351741 100644
--- a/src/base/build.mak
+++ b/src/base/build.mak
@@ -35,7 +35,7 @@ CXXFLAGS := $(CFLAGS) $(CXXFLAGS)
 ASFLAGS  := $(CFLAGS) $(ASFLAGS)
 
 ifeq ($(PSP_FW_VERSION),)
-PSP_FW_VERSION=150
+PSP_FW_VERSION=600
 endif
 
 EXPAND_MEMORY = 0
diff --git a/src/base/build_prx.mak b/src/base/build_prx.mak
index c8f15a90..671c95f2 100644
--- a/src/base/build_prx.mak
+++ b/src/base/build_prx.mak
@@ -37,7 +37,7 @@ LIBS := $(LIBS) -lpspdebug -lpspdisplay -lpspge -lpspctrl
 endif
 
 ifeq ($(PSP_FW_VERSION),)
-PSP_FW_VERSION=150
+PSP_FW_VERSION=600
 endif
 
 CFLAGS += -D_PSP_FW_VERSION=$(PSP_FW_VERSION)