diff --git a/src/frontend/inp.c b/src/frontend/inp.c
index 480dec2c7..4879fe6f8 100644
--- a/src/frontend/inp.c
+++ b/src/frontend/inp.c
@@ -65,8 +65,6 @@ static void eval_agauss(struct line *deck, char *fcn);
 void line_free_x(struct line *deck, bool recurse);
 void create_circbyline(char *line);
 
-void inp_evaluate_temper(void);
-
 extern bool ft_batchmode;
 
 /*
diff --git a/src/include/ngspice/cktdefs.h b/src/include/ngspice/cktdefs.h
index eeff067e8..7dd736618 100644
--- a/src/include/ngspice/cktdefs.h
+++ b/src/include/ngspice/cktdefs.h
@@ -448,4 +448,6 @@ extern int NIpred(CKTcircuit *ckt);
 extern IFfrontEnd *SPfrontEnd;
 extern bool expr_w_temper;
 
+extern void inp_evaluate_temper(void);
+
 #endif
diff --git a/src/spicelib/analysis/cktdojob.c b/src/spicelib/analysis/cktdojob.c
index cffa5f041..77dddf432 100644
--- a/src/spicelib/analysis/cktdojob.c
+++ b/src/spicelib/analysis/cktdojob.c
@@ -23,7 +23,6 @@ Modified: 2000 AlansFixes
 #endif
 
 extern SPICEanalysis *analInfo[];
-extern void inp_evaluate_temper(void);
 
 int
 CKTdoJob(CKTcircuit *ckt, int reset, TSKtask *task)
diff --git a/src/spicelib/analysis/dctrcurv.c b/src/spicelib/analysis/dctrcurv.c
index fc449163f..75f2bf9f9 100644
--- a/src/spicelib/analysis/dctrcurv.c
+++ b/src/spicelib/analysis/dctrcurv.c
@@ -27,8 +27,6 @@ Modified: 1999 Paolo Nenzi
 static double actval, actdiff;
 #endif
 
-extern void inp_evaluate_temper(void);
-
 
 int
 DCtrCurv(CKTcircuit *ckt, int restart)