diff --git a/src/mac/carbon/thread.cpp b/src/mac/carbon/thread.cpp
index e31c812c02..fa6f0e8e74 100644
--- a/src/mac/carbon/thread.cpp
+++ b/src/mac/carbon/thread.cpp
@@ -433,6 +433,8 @@ bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
         SetPriority(m_priority);
     }
 
+    m_state = STATE_NEW;
+
     return TRUE;
 }
 
diff --git a/src/mac/thread.cpp b/src/mac/thread.cpp
index e31c812c02..fa6f0e8e74 100644
--- a/src/mac/thread.cpp
+++ b/src/mac/thread.cpp
@@ -433,6 +433,8 @@ bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
         SetPriority(m_priority);
     }
 
+    m_state = STATE_NEW;
+
     return TRUE;
 }
 
diff --git a/src/os2/thread.cpp b/src/os2/thread.cpp
index ad67a34b11..884f66cff4 100644
--- a/src/os2/thread.cpp
+++ b/src/os2/thread.cpp
@@ -484,6 +484,9 @@ bool wxThreadInternal::Create(
     {
         SetPriority(m_nPriority);
     }
+
+    m_eState = STATE_NEW;
+
     return(TRUE);
 }
 
diff --git a/src/unix/threadpsx.cpp b/src/unix/threadpsx.cpp
index 597f87eb8d..1b93fa7f52 100644
--- a/src/unix/threadpsx.cpp
+++ b/src/unix/threadpsx.cpp
@@ -1183,6 +1183,8 @@ wxThreadError wxThread::Create(unsigned int WXUNUSED(stackSize))
         return wxTHREAD_NO_RESOURCE;
     }
 
+    m_state = STATE_NEW;
+
     return wxTHREAD_NO_ERROR;
 }