diff --git a/build/exe.mk b/build/exe.mk
index 20f087ba..de673485 100644
--- a/build/exe.mk
+++ b/build/exe.mk
@@ -33,7 +33,7 @@ all : release
 include ../../build/config.mk
 
 debug   : CFLAGS = -g -O0 -DDEBUG $(DEBUG_CFLAGS) -Wall -W -DVERSION=$(VERSION) $(DEFINES) $(INCLUDES)
-release : CFLAGS = -O3 -fomit-frame-pointer -funroll-loops -ffast-math -finline-functions -DNDEBUG $(RELEASE_CFLAGS) -Wall -W -DVERSION=$(VERSION) $(DEFINES) $(INCLUDES)
+release : CFLAGS = -O3 -fomit-frame-pointer -funroll-loops -finline-functions -DNDEBUG $(RELEASE_CFLAGS) -Wall -W -DVERSION=$(VERSION) $(DEFINES) $(INCLUDES)
 
 LFLAGS  = -L$(LIBPATH)
 
diff --git a/build/lib.mk b/build/lib.mk
index db1fa776..ec0dc0c7 100644
--- a/build/lib.mk
+++ b/build/lib.mk
@@ -32,7 +32,7 @@ all : release
 include ../../build/config.mk
 
 debug   : CFLAGS = -g -O0 -DDEBUG $(DEBUG_CFLAGS) -Wall -W -DVERSION=$(VERSION) $(DEFINES) $(INCLUDES)
-release : CFLAGS = -O3 -fomit-frame-pointer -funroll-loops -ffast-math -finline-functions -DNDEBUG $(RELEASE_CFLAGS) -Wall -W -DVERSION=$(VERSION) $(DEFINES) $(INCLUDES)
+release : CFLAGS = -O3 -fomit-frame-pointer -funroll-loops -finline-functions -DNDEBUG $(RELEASE_CFLAGS) -Wall -W -DVERSION=$(VERSION) $(DEFINES) $(INCLUDES)
 
 LFLAGS  = -L$(LIBPATH)