diff --git a/src/ciderlib/support/misc.c b/src/ciderlib/support/misc.c
index e96ed0ff0..3ef34ec17 100644
--- a/src/ciderlib/support/misc.c
+++ b/src/ciderlib/support/misc.c
@@ -134,16 +134,16 @@ foundError(int error)
     switch( error ) {
 	/*  Removed for Spice3e1 Compatibility 
 	case spSMALL_PIVOT:
-	    printf( "Warning: LU Decomposition Problem - SMALL PIVOT\n" );
+	    fprintf(stderr, "Warning: LU Decomposition Problem - SMALL PIVOT\n" );
 	    matrixError = FALSE;
 	    break;
 	*/
 	case spPANIC:
-	    printf( "Error: LU Decomposition Failed - PANIC\n" );
+	    fprintf(stderr, "Error: LU Decomposition Failed - PANIC\n" );
 	    matrixError = TRUE;
 	    break;
 	case spSINGULAR:
-	    printf( "Error: LU Decomposition Failed - SINGULAR\n" );
+	    fprintf(stderr, "Error: LU Decomposition Failed - SINGULAR\n" );
 	    matrixError = TRUE;
 	    break;
 	/*  Removed for Spice3e1 Compatibility 
diff --git a/src/frontend/inp.c b/src/frontend/inp.c
index 0df4e6eaa..682400818 100644
--- a/src/frontend/inp.c
+++ b/src/frontend/inp.c
@@ -1107,8 +1107,8 @@ inp_spsource(FILE *fp, bool comfile, char *filename, bool intfile)
                         strstr(dd->line, " rms ") ||
                         strstr(dd->line, " integ "))
                     {
-                        printf("Warning: .OPTION AUTOSTOP will not be effective because one of 'max|min|avg|rms|integ' is used in .meas\n");
-                        printf("         AUTOSTOP being disabled...\n");
+                        fprintf(stderr, "Warning: .OPTION AUTOSTOP will not be effective because one of 'max|min|avg|rms|integ' is used in .meas\n");
+                        fprintf(stderr, "         AUTOSTOP being disabled...\n");
                         cp_remvar("autostop");
                     }
                 }