diff --git a/Geo/Geo.cpp b/Geo/Geo.cpp
index 05c35cb2db66aa8eb994b022331d84808267b9d1..d1092a031a07469c3dc8e4396926e08d21feffe0 100644
--- a/Geo/Geo.cpp
+++ b/Geo/Geo.cpp
@@ -3450,7 +3450,7 @@ bool ProjectPointOnSurface(Surface *s, Vertex &p, double uv[2])
 
 // Split line
 
-static Curve *_create_splitted_curve(Curve *c,List_T *nodes)
+static Curve *_create_splitted_curve(Curve *c, List_T *nodes)
 {
   int  beg, end;
   List_Read(nodes, 0, &beg);
diff --git a/Geo/GeoInterpolation.cpp b/Geo/GeoInterpolation.cpp
index d206da49970914087a095d013e65d4310cbf20da..16f88b4893e0d8840d9c5413abcabab28ce7bf85 100644
--- a/Geo/GeoInterpolation.cpp
+++ b/Geo/GeoInterpolation.cpp
@@ -651,7 +651,7 @@ static void TransfiniteSph(Vertex S, Vertex center, Vertex *T)
   T->Pos.Z = center.Pos.Z + r * dirz;
 }
 
-bool iSRuledSurfaceASphere(Surface *s, SPoint3 &center, double &radius)
+bool IsRuledSurfaceASphere(Surface *s, SPoint3 &center, double &radius)
 {
   if(s->Typ != MSH_SURF_REGL && s->Typ != MSH_SURF_TRIC) return false;
   if(!List_Nbr(s->Generatrices)) return false;
diff --git a/Geo/GeoInterpolation.h b/Geo/GeoInterpolation.h
index c9cb7b5136568c66d0c565bd9235e39c68e87f78..f628afa586ef9610aad81520220032f8dc7c1e9d 100644
--- a/Geo/GeoInterpolation.h
+++ b/Geo/GeoInterpolation.h
@@ -13,7 +13,7 @@ class Curve;
 class Vertex;
 class gmshSurface;
 
-bool iSRuledSurfaceASphere(Surface *s, SPoint3 &center, double &radius);
+bool IsRuledSurfaceASphere(Surface *s, SPoint3 &center, double &radius);
 Vertex InterpolateCurve(Curve *Curve, double u, int derivee);
 Vertex InterpolateSurface(Surface *s, double u, double v, int derivee, int u_v);
 SPoint2 InterpolateCubicSpline(Vertex * v[4], double t, double mat[4][4],
diff --git a/Geo/gmshFace.cpp b/Geo/gmshFace.cpp
index 334e7816e6f4685043904acc29ef502d97c65387..dec8d8a89dab7756ee4434b0149eecd38daa5f16 100644
--- a/Geo/gmshFace.cpp
+++ b/Geo/gmshFace.cpp
@@ -84,7 +84,7 @@ void gmshFace::resetNativePtr(Surface *face)
   // the bounding vertices)
   if(s->Typ == MSH_SURF_PLAN) computeMeanPlane();
 
-  isSphere = iSRuledSurfaceASphere(s, center, radius);
+  isSphere = IsRuledSurfaceASphere(s, center, radius);
 }
 
 double gmshFace::getMetricEigenvalue(const SPoint2 &pt)