diff --git a/libs/ardour/vst_plugin.cc b/libs/ardour/vst_plugin.cc
index 3c21d9f3ee..7bcbcd5039 100644
--- a/libs/ardour/vst_plugin.cc
+++ b/libs/ardour/vst_plugin.cc
@@ -104,7 +104,10 @@ VSTPlugin::set_parameter (uint32_t which, float val)
 {
 	float v = get_parameter (which);
 
-	cerr << name() << " setting parameter #" << which << " to " << val << " current " << v << " == ? " << (v == val) << " delta " << std::setprecision(15) << (v - val) << endl;
+	cerr << name() << " setting parameter #" << which << " to " << val << " current " << v << " == ? " 
+	     << (v == val) << " floateq ? " << floateq (v, val, 1) << " delta " 
+	     << std::setprecision(15) 
+	     << (v - val) << endl;
 
 	if (PBD::floateq (get_parameter (which), val, 1)) {
 		return;
diff --git a/libs/pbd/pbd/floating.h b/libs/pbd/pbd/floating.h
index f707dc9f5b..ef97ce8fcc 100644
--- a/libs/pbd/pbd/floating.h
+++ b/libs/pbd/pbd/floating.h
@@ -7,6 +7,8 @@
 #ifndef __libpbd__floating_h__
 #define __libpbd__floating_h__
 
+#include <cmath>
+
 namespace PBD {
 
 union Float_t
@@ -26,18 +28,18 @@ union Float_t
 
 static inline bool floateq (float a, float b, int max_ulps_diff)
 {
-    Float_t ua(a);
-    Float_t ub(b);
+    Float_t ua (a);
+    Float_t ub (b);
  
+    if (a == b) {
+            return true;
+    }
+
     // Different signs means they do not match.
     if (ua.negative() != ub.negative()) {
-        // Check for equality to make sure +0==-0
-	    if (a == b) {
-		    return true;
-	    }
 	    return false;
     }
- 
+
     // Find the difference in ULPs.
     int ulps_diff = abs (ua.i - ub.i);