diff --git a/apps/dgst.c b/apps/dgst.c
index c3e37be41..0620b32bb 100644
--- a/apps/dgst.c
+++ b/apps/dgst.c
@@ -88,8 +88,8 @@ int MAIN(int argc, char **argv)
 	BIO *bmd=NULL;
 	BIO *out = NULL;
 	const char *name;
-#define PROG_NAME_SIZE  16
-	char pname[PROG_NAME_SIZE];
+#define PROG_NAME_SIZE  39
+	char pname[PROG_NAME_SIZE+1];
 	int separator=0;
 	int debug=0;
 	int keyform=FORMAT_PEM;
diff --git a/apps/enc.c b/apps/enc.c
index d01060f22..2c3af7517 100644
--- a/apps/enc.c
+++ b/apps/enc.c
@@ -117,8 +117,8 @@ int MAIN(int argc, char **argv)
 	const EVP_CIPHER *cipher=NULL,*c;
 	char *inf=NULL,*outf=NULL;
 	BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
-#define PROG_NAME_SIZE  16
-	char pname[PROG_NAME_SIZE];
+#define PROG_NAME_SIZE  39
+	char pname[PROG_NAME_SIZE+1];
 	char *engine = NULL;
 
 	apps_startup();
diff --git a/apps/openssl.c b/apps/openssl.c
index a34401177..c17458ef7 100644
--- a/apps/openssl.c
+++ b/apps/openssl.c
@@ -215,8 +215,8 @@ static void lock_dbg_cb(int mode, int type, const char *file, int line)
 int main(int Argc, char *Argv[])
 	{
 	ARGS arg;
-#define PROG_NAME_SIZE	16
-	char pname[PROG_NAME_SIZE];
+#define PROG_NAME_SIZE	39
+	char pname[PROG_NAME_SIZE+1];
 	FUNCTION f,*fp;
 	MS_STATIC char *prompt,buf[1024],config_name[256];
 	int n,i,ret=0;