diff --git a/Changes b/Changes
index 557bddc76..75cf69c08 100644
--- a/Changes
+++ b/Changes
@@ -15,6 +15,8 @@ The contributors that suggested a given feature are shown in []. Thanks!
 
 ****  Fix error when no modules in $unit, bug1381. [Al Grant]
 
+****  Fix missing too many digits warning, bug1380. [Jonathan Kimmitt]
+
 
 * Verilator 4.008 2018-12-01
 
diff --git a/src/V3Number.cpp b/src/V3Number.cpp
index ce68f79b0..0532d42d0 100644
--- a/src/V3Number.cpp
+++ b/src/V3Number.cpp
@@ -177,10 +177,9 @@ V3Number::V3Number(FileLine* fileline, const char* sourcep) {
     }
     else {
 	// Convert bin/octal number to hex
-	for (const char* cp=value_startp+strlen(value_startp)-1;
-	     (cp>=value_startp
-	      && obit<=width());
-	     cp--) {
+        for (const char* cp=value_startp+strlen(value_startp)-1;
+             cp >= value_startp;
+             cp--) {
 	    if (*cp!='_' && *cp!='0' && obit>=width()) {
 		m_fileline->v3error("Too many digits for "<<width()<<" bit number: "<<sourcep);
 		break;
diff --git a/test_regress/t/t_const_overflow_bad.out b/test_regress/t/t_const_overflow_bad.out
index aac637312..56909e483 100644
--- a/test_regress/t/t_const_overflow_bad.out
+++ b/test_regress/t/t_const_overflow_bad.out
@@ -2,4 +2,5 @@
 %Error: t/t_const_overflow_bad.v:10: Too many digits for 8 bit number: 8'habc
 %Error: t/t_const_overflow_bad.v:11: Too many digits for 6 bit number: 6'o1234
 %Error: t/t_const_overflow_bad.v:12: Too many digits for 3 bit number: 3'b1111
+%Error: t/t_const_overflow_bad.v:18: Too many digits for 129 bit number: 129'hdeadbeefc001f00ddeadbeefc001f00ddeadbeefc001f00ddeadbeefc001f00d
 %Error: Exiting due to
diff --git a/test_regress/t/t_const_overflow_bad.v b/test_regress/t/t_const_overflow_bad.v
index 872a5717b..2cb28a8a1 100644
--- a/test_regress/t/t_const_overflow_bad.v
+++ b/test_regress/t/t_const_overflow_bad.v
@@ -14,4 +14,7 @@ module t (/*AUTOARG*/);
    // We'll allow this though; no reason to be cruel
    parameter [200:0] OKH = 8'h000000001;
 
+   // bug1380
+   parameter [128:0] ALSO_SMALL = 129'hdeadbeefc001f00ddeadbeefc001f00ddeadbeefc001f00ddeadbeefc001f00d;
+
 endmodule