diff --git a/src/cas/example/simple/main.cc b/src/cas/example/simple/main.cc
index cea1db4dd..5fbfa3162 100644
--- a/src/cas/example/simple/main.cc
+++ b/src/cas/example/simple/main.cc
@@ -22,7 +22,7 @@ extern int main (int argc, const char **argv)
 		if (sscanf(argv[i], "-d\t%u", &debugLevel)==1) {
 			continue;
 		}
-		if (sscanf(argv[i],"-t %f", &executionTime)==1) {
+		if (sscanf(argv[i],"-t %lf", &executionTime)==1) {
 			forever = aitFalse;
 			continue;
 		}