--- src/parseinfo.c
+++ src/parseinfo.c
@@ -249,7 +249,7 @@ readSizeT (const char *infopath, const c
 		       infopath, option, p[strlen(p)]);
 		return false;
 	}
-	TRACE (TRACE_DATA, "readSizeT(): Found factor %u for %s",
+	TRACE (TRACE_DATA, "readSizeT(): Found factor %zu for %s",
 	       factor, option);
     }
 
@@ -273,9 +273,9 @@ readSizeT (const char *infopath, const c
 	/* Don't return an error, just max out.  */
 	num = SIZE_MAX;
 
-    TRACE (TRACE_DATA, "readSizeT(): read number %u for %s", num, option);
+    TRACE (TRACE_DATA, "readSizeT(): read number %zu for %s", num, option);
     *val = xtimes (strtoul (p, NULL, 10), factor);
-    TRACE (TRACE_DATA, "readSizeT(): returnning %u for %s", *val, option);
+    TRACE (TRACE_DATA, "readSizeT(): returnning %zu for %s", *val, option);
     return true;
 }
 
--- src/subr.c
+++ src/subr.c
@@ -1336,7 +1336,7 @@ format_cmdline (const char *format, ...)
 	    		dellist(&pflist);
 	    		free(b);
 			error (1, 0,
-"internal error:  unknown integer arg size (%d)",
+"internal error:  unknown integer arg size (%zu)",
                                length);
 			break;
 		}
@@ -1379,7 +1379,7 @@ format_cmdline (const char *format, ...)
 	    		dellist(&pflist);
 	    		free(b);
 			error (1, 0,
-"internal error:  unknown floating point arg size (%d)",
+"internal error:  unknown floating point arg size (%zu)",
                                length);
 			break;
 		}