1 files changed, 1 insertions, 1 deletions
diff --git a/param.ccl b/param.ccl
index 34b7644..ee83190 100644
--- a/param.ccl
+++ b/param.ccl
@@ -115,7 +115,7 @@ KEYWORD out3D_style "Which style for 3D volume IOASCII output"
 
 STRING out_format "Which format for IOASCII floating-point number output" STEERABLE = ALWAYS
 {
-  "^(\.[0-9]{1,2})?[EGefg]$" :: "output with given precision in exponential / floating point notation"
+  "^(\.[1]?[0-9])?[EGefg]$" :: "output with given precision in exponential / floating point notation"
 } ".13f"