diff --git a/LibAutomaton/Makefile b/LibAutomaton/Makefile
index 3778091..5f9c04e 100644
--- a/LibAutomaton/Makefile
+++ b/LibAutomaton/Makefile
@@ -1,5 +1,5 @@
 CC=gcc
-CFLAGS=-Wall -Werror -pedantic -fpic -g
+CFLAGS=-Wall -Werror -pedantic -fpic -g -std=c89
 
 
 LIBSDIR=-L/usr/lib -L../Libs
diff --git a/Makefile b/Makefile
index 24db132..5c8a299 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 # export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:./Libs
 
 CC=gcc
-CFLAGS=-Wall -Werror -pedantic -fpic -g
+CFLAGS=-Wall -Werror -pedantic -fpic -g -std=c89
 
 
 LIBSDIR=-L/usr/lib -L./Libs
diff --git a/main.c b/main.c
index 12d7ac3..6ae9fd3 100644
--- a/main.c
+++ b/main.c
@@ -11,6 +11,8 @@
 #include <matrix.h>
 
 int main(int argc, char **argv){
+	int Rule = 256;
+	int N = 1;
 	Matrix matrix = CreateMatrix();
 	Matrix m2;
 	Matrix m3;
@@ -22,8 +24,6 @@ int main(int argc, char **argv){
 	BasicPrintMatrix(m3);
 	freeMatrix(m3);
 
-	int Rule = 256;
-	int N = 1;
 	applyRules(matrix,Rule,N);
 	matrix = SetMatrixDim(matrix,3,3);