diff --git a/src/MMult_1x4_6.c b/src/MMult_1x4_6.c
index b8cc2d9..1c317ac 100644
--- a/src/MMult_1x4_6.c
+++ b/src/MMult_1x4_6.c
@@ -6,7 +6,7 @@
 
 /* Routine for computing C = A * B + C */
 
-void AddDot1x4( int, double *, int,  double *, int, double *, int )
+void AddDot1x4( int, double *, int,  double *, int, double *, int );
 
 void MY_MMult( int m, int n, int k, double *a, int lda, 
                                     double *b, int ldb,
diff --git a/src/MMult_1x4_7.c b/src/MMult_1x4_7.c
index a2c52b9..341f0c7 100644
--- a/src/MMult_1x4_7.c
+++ b/src/MMult_1x4_7.c
@@ -6,7 +6,7 @@
 
 /* Routine for computing C = A * B + C */
 
-void AddDot1x4( int, double *, int,  double *, int, double *, int )
+void AddDot1x4( int, double *, int,  double *, int, double *, int );
 
 void MY_MMult( int m, int n, int k, double *a, int lda, 
                                     double *b, int ldb,
diff --git a/src/MMult_1x4_8.c b/src/MMult_1x4_8.c
index 445e81d..f12128e 100644
--- a/src/MMult_1x4_8.c
+++ b/src/MMult_1x4_8.c
@@ -6,7 +6,7 @@
 
 /* Routine for computing C = A * B + C */
 
-void AddDot1x4( int, double *, int,  double *, int, double *, int )
+void AddDot1x4( int, double *, int,  double *, int, double *, int );
 
 void MY_MMult( int m, int n, int k, double *a, int lda, 
                                     double *b, int ldb,
diff --git a/src/MMult_1x4_9.c b/src/MMult_1x4_9.c
index 8802d47..00ec0d6 100644
--- a/src/MMult_1x4_9.c
+++ b/src/MMult_1x4_9.c
@@ -6,7 +6,7 @@
 
 /* Routine for computing C = A * B + C */
 
-void AddDot1x4( int, double *, int,  double *, int, double *, int )
+void AddDot1x4( int, double *, int,  double *, int, double *, int );
 
 void MY_MMult( int m, int n, int k, double *a, int lda, 
                                     double *b, int ldb,