diff --git a/src/math.c b/src/math.c
index a34597d..11ebbd1 100644
--- a/src/math.c
+++ b/src/math.c
@@ -3,6 +3,9 @@
 #include "math.h"
 #include "util.h"
 
+typedef struct s_expr EXPR;
+EXPR sexpr [MAX_EXPR_ARGS];
+
 static char expr_out[(MAX_EXPR_LEN*2)+1];
 
 int get_expr_count()
@@ -83,7 +86,8 @@ char *ss_expr(char *string)
             syn_error("ss:error:calc operator not supported");
     }
 
-    if(gcvt(finalf, 12, expr_out)==NULL)
+    sprintf(expr_out, "%f", finalf);
+    if(expr_out==NULL)
         syn_error("ss:error:calc illegal instruction");
 
     return expr_out;
diff --git a/src/math.h b/src/math.h
index 3a482d1..d912d6f 100644
--- a/src/math.h
+++ b/src/math.h
@@ -4,8 +4,5 @@ struct s_expr
     char arg[MAX_EXPR_LEN+1];
 };
 
-typedef struct s_expr EXPR;
-EXPR sexpr [MAX_EXPR_ARGS];
-
 void set_expr_arg(int index, char *arg);
 char *ss_expr(char *string);
diff --git a/src/util.c b/src/util.c
index 33312f9..e308404 100644
--- a/src/util.c
+++ b/src/util.c
@@ -9,6 +9,8 @@
 #include "deps.h"
 #include "util.h"
 
+time_t current_time;
+
 void syn_error(char *message)
 {
     printf("%s\n", message);
diff --git a/src/util.h b/src/util.h
index 5a62994..1f5cb43 100644
--- a/src/util.h
+++ b/src/util.h
@@ -5,8 +5,6 @@
     View README file supplied with this software for more details
 */
 
-time_t current_time;
-
 void syn_error(char *message);
 char *strip_nl(char *string);
 int file_exists(char *path);