diff --git a/apix-adc-example/Makefile b/apix-adc-example/Makefile
index 65d07d1..108e6b9 100644
--- a/apix-adc-example/Makefile
+++ b/apix-adc-example/Makefile
@@ -16,7 +16,7 @@
 
 BINARY := apix-adc-example
 
-CFLAGS += -Wall -O2
+CFLAGS += -Wall -O0
 
 CFLAGS += $(shell pkg-config --cflags libdigiapix)
 LDLIBS += $(shell pkg-config --libs libdigiapix)
diff --git a/apix-gpio-example/Makefile b/apix-gpio-example/Makefile
index 8481a67..f392232 100644
--- a/apix-gpio-example/Makefile
+++ b/apix-gpio-example/Makefile
@@ -16,7 +16,7 @@
 
 BINARY := apix-gpio-example
 
-CFLAGS += -Wall -O2
+CFLAGS += -Wall -O0
 
 CFLAGS += $(shell pkg-config --cflags libdigiapix)
 LDLIBS += $(shell pkg-config --libs libdigiapix)
diff --git a/apix-i2c-example/Makefile b/apix-i2c-example/Makefile
index 231c6c9..87f5dd7 100644
--- a/apix-i2c-example/Makefile
+++ b/apix-i2c-example/Makefile
@@ -16,7 +16,7 @@
 
 BINARY := apix-i2c-example
 
-CFLAGS += -Wall -O2
+CFLAGS += -Wall -O0
 
 CFLAGS += $(shell pkg-config --cflags libdigiapix)
 LDLIBS += $(shell pkg-config --libs libdigiapix)
diff --git a/apix-pwm-example/Makefile b/apix-pwm-example/Makefile
index 52c2773..02711d4 100644
--- a/apix-pwm-example/Makefile
+++ b/apix-pwm-example/Makefile
@@ -16,7 +16,7 @@
 
 BINARY := apix-pwm-example
 
-CFLAGS += -Wall -O2
+CFLAGS += -Wall -O0
 
 CFLAGS += $(shell pkg-config --cflags libdigiapix)
 LDLIBS += $(shell pkg-config --libs libdigiapix)
diff --git a/apix-spi-example/Makefile b/apix-spi-example/Makefile
index 5e43743..54851eb 100644
--- a/apix-spi-example/Makefile
+++ b/apix-spi-example/Makefile
@@ -16,7 +16,7 @@
 
 BINARY := apix-spi-example
 
-CFLAGS += -Wall -O2
+CFLAGS += -Wall -O0
 
 CFLAGS += $(shell pkg-config --cflags libdigiapix)
 LDLIBS += $(shell pkg-config --libs libdigiapix)