diff --git a/matrix.c b/matrix.c
index 90d4c6b..033b7fa 100644
--- a/matrix.c
+++ b/matrix.c
@@ -4,12 +4,6 @@
 
 // TODO Matrix-Funktionen implementieren
 
-typedef struct Matrix {
-    unsigned int xElement;
-    unsigned int yElement;
-    int ** data;
-} Matrix;
-
 Matrix createMatrix(unsigned int rows, unsigned int cols)
 {
     Matrix m;
diff --git a/matrix.h b/matrix.h
index cc640d1..cf9fae4 100644
--- a/matrix.h
+++ b/matrix.h
@@ -4,9 +4,14 @@
 #define UNDEFINED_MATRIX_VALUE 0
 
 typedef float MatrixType;
-
 // TODO Matrixtyp definieren
 
+typedef struct Matrix {
+    unsigned int xElement;
+    unsigned int yElement;
+    double ** data;
+} Matrix;
+
 
 Matrix createMatrix(unsigned int rows, unsigned int cols);
 void clearMatrix(Matrix *matrix);